Home / 4,287.12-6,428.28-1,513.08

Finding the Fourth Proportional to 4,287.12, 6,428.28 and 1,513.08

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Solution

The fourth proportional to 4,287.12, 6,428.28 and 1,513.08 is: 2,268.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.12 : 6,428.28 = 1,513.08 : x
  2. Step 2: Convert to fraction form
    4,287.12/6,428.28 = 1,513.08/x
  3. Step 3: Cross multiply
    4,287.12x = 6,428.28 × 1,513.08
  4. Step 4: Simplify right side
    4,287.12x = 9,726,501.90
  5. Step 5: Solve for x
    x = 9,726,501.90/4,287.12
  6. Step 6: Final answer
    x = 2,268.77

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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.