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Finding the Fourth Proportional to 2,753.48, 4,130.16 and 673.49

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Solution

The fourth proportional to 2,753.48, 4,130.16 and 673.49 is: 1,010.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.48 : 4,130.16 = 673.49 : x
  2. Step 2: Convert to fraction form
    2,753.48/4,130.16 = 673.49/x
  3. Step 3: Cross multiply
    2,753.48x = 4,130.16 × 673.49
  4. Step 4: Simplify right side
    2,753.48x = 2,781,600.81
  5. Step 5: Solve for x
    x = 2,781,600.81/2,753.48
  6. Step 6: Final answer
    x = 1,010.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.