Home / 6,487.07-9,724.38-4,140.45

Finding the Fourth Proportional to 6,487.07, 9,724.38 and 4,140.45

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Solution

The fourth proportional to 6,487.07, 9,724.38 and 4,140.45 is: 6,206.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487.07 : 9,724.38 = 4,140.45 : x
  2. Step 2: Convert to fraction form
    6,487.07/9,724.38 = 4,140.45/x
  3. Step 3: Cross multiply
    6,487.07x = 9,724.38 × 4,140.45
  4. Step 4: Simplify right side
    6,487.07x = 40,263,288.47
  5. Step 5: Solve for x
    x = 40,263,288.47/6,487.07
  6. Step 6: Final answer
    x = 6,206.70

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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.