Home / 5,141.28-7,670.24-4,718.40

Finding the Fourth Proportional to 5,141.28, 7,670.24 and 4,718.40

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Solution

The fourth proportional to 5,141.28, 7,670.24 and 4,718.40 is: 7,039.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141.28 : 7,670.24 = 4,718.40 : x
  2. Step 2: Convert to fraction form
    5,141.28/7,670.24 = 4,718.40/x
  3. Step 3: Cross multiply
    5,141.28x = 7,670.24 × 4,718.40
  4. Step 4: Simplify right side
    5,141.28x = 36,191,260.42
  5. Step 5: Solve for x
    x = 36,191,260.42/5,141.28
  6. Step 6: Final answer
    x = 7,039.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.