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Finding the Fourth Proportional to 885.88, 1,219.26 and 852.76

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Solution

The fourth proportional to 885.88, 1,219.26 and 852.76 is: 1,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    885.88 : 1,219.26 = 852.76 : x
  2. Step 2: Convert to fraction form
    885.88/1,219.26 = 852.76/x
  3. Step 3: Cross multiply
    885.88x = 1,219.26 × 852.76
  4. Step 4: Simplify right side
    885.88x = 1,039,736.16
  5. Step 5: Solve for x
    x = 1,039,736.16/885.88
  6. Step 6: Final answer
    x = 1,173.68

Related Problems

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Half scale
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Double scale
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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.