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Finding the Fourth Proportional to 2,457.38, 3,685.56 and 725.60

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Solution

The fourth proportional to 2,457.38, 3,685.56 and 725.60 is: 1,088.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.38 : 3,685.56 = 725.60 : x
  2. Step 2: Convert to fraction form
    2,457.38/3,685.56 = 725.60/x
  3. Step 3: Cross multiply
    2,457.38x = 3,685.56 × 725.60
  4. Step 4: Simplify right side
    2,457.38x = 2,674,242.34
  5. Step 5: Solve for x
    x = 2,674,242.34/2,457.38
  6. Step 6: Final answer
    x = 1,088.25

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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.