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Finding the Fourth Proportional to 1,213.82, 1,675.60 and 884.76

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Solution

The fourth proportional to 1,213.82, 1,675.60 and 884.76 is: 1,221.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213.82 : 1,675.60 = 884.76 : x
  2. Step 2: Convert to fraction form
    1,213.82/1,675.60 = 884.76/x
  3. Step 3: Cross multiply
    1,213.82x = 1,675.60 × 884.76
  4. Step 4: Simplify right side
    1,213.82x = 1,482,503.86
  5. Step 5: Solve for x
    x = 1,482,503.86/1,213.82
  6. Step 6: Final answer
    x = 1,221.35

Related Problems

Find fourth proportional to 606.91, 837.80 and 442.38
Half scale
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Double scale
Find fourth proportional to 1,214.82, 1,676.98 and 885.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.