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Finding the Fourth Proportional to 1,676.48, 2,312.48 and 1,250.76

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Solution

The fourth proportional to 1,676.48, 2,312.48 and 1,250.76 is: 1,725.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.48 : 2,312.48 = 1,250.76 : x
  2. Step 2: Convert to fraction form
    1,676.48/2,312.48 = 1,250.76/x
  3. Step 3: Cross multiply
    1,676.48x = 2,312.48 × 1,250.76
  4. Step 4: Simplify right side
    1,676.48x = 2,892,357.48
  5. Step 5: Solve for x
    x = 2,892,357.48/1,676.48
  6. Step 6: Final answer
    x = 1,725.26

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Half scale
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Double scale
Find fourth proportional to 1,677.48, 2,313.86 and 1,251.76
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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.