Home / 6,387.99-9,572.20-2,688.19

Finding the Fourth Proportional to 6,387.99, 9,572.20 and 2,688.19

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Solution

The fourth proportional to 6,387.99, 9,572.20 and 2,688.19 is: 4,028.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387.99 : 9,572.20 = 2,688.19 : x
  2. Step 2: Convert to fraction form
    6,387.99/9,572.20 = 2,688.19/x
  3. Step 3: Cross multiply
    6,387.99x = 9,572.20 × 2,688.19
  4. Step 4: Simplify right side
    6,387.99x = 25,731,892.32
  5. Step 5: Solve for x
    x = 25,731,892.32/6,387.99
  6. Step 6: Final answer
    x = 4,028.17

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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.