Home / 6,140.28-8,473.62-3,345.78

Finding the Fourth Proportional to 6,140.28, 8,473.62 and 3,345.78

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Solution

The fourth proportional to 6,140.28, 8,473.62 and 3,345.78 is: 4,617.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.28 : 8,473.62 = 3,345.78 : x
  2. Step 2: Convert to fraction form
    6,140.28/8,473.62 = 3,345.78/x
  3. Step 3: Cross multiply
    6,140.28x = 8,473.62 × 3,345.78
  4. Step 4: Simplify right side
    6,140.28x = 28,350,868.32
  5. Step 5: Solve for x
    x = 28,350,868.32/6,140.28
  6. Step 6: Final answer
    x = 4,617.19

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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.