Home / 7,291.02-10,061.52-4,147.20

Finding the Fourth Proportional to 7,291.02, 10,061.52 and 4,147.20

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Solution

The fourth proportional to 7,291.02, 10,061.52 and 4,147.20 is: 5,723.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,291.02 : 10,061.52 = 4,147.20 : x
  2. Step 2: Convert to fraction form
    7,291.02/10,061.52 = 4,147.20/x
  3. Step 3: Cross multiply
    7,291.02x = 10,061.52 × 4,147.20
  4. Step 4: Simplify right side
    7,291.02x = 41,727,135.74
  5. Step 5: Solve for x
    x = 41,727,135.74/7,291.02
  6. Step 6: Final answer
    x = 5,723.09

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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.