Home / 7,349.65-10,142.38-4,162.90

Finding the Fourth Proportional to 7,349.65, 10,142.38 and 4,162.90

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Solution

The fourth proportional to 7,349.65, 10,142.38 and 4,162.90 is: 5,744.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,349.65 : 10,142.38 = 4,162.90 : x
  2. Step 2: Convert to fraction form
    7,349.65/10,142.38 = 4,162.90/x
  3. Step 3: Cross multiply
    7,349.65x = 10,142.38 × 4,162.90
  4. Step 4: Simplify right side
    7,349.65x = 42,221,713.70
  5. Step 5: Solve for x
    x = 42,221,713.70/7,349.65
  6. Step 6: Final answer
    x = 5,744.72

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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.