Home / 5,412.96-7,470.48-3,175.20

Finding the Fourth Proportional to 5,412.96, 7,470.48 and 3,175.20

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Solution

The fourth proportional to 5,412.96, 7,470.48 and 3,175.20 is: 4,382.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.96 : 7,470.48 = 3,175.20 : x
  2. Step 2: Convert to fraction form
    5,412.96/7,470.48 = 3,175.20/x
  3. Step 3: Cross multiply
    5,412.96x = 7,470.48 × 3,175.20
  4. Step 4: Simplify right side
    5,412.96x = 23,720,268.10
  5. Step 5: Solve for x
    x = 23,720,268.10/5,412.96
  6. Step 6: Final answer
    x = 4,382.13

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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.