Home / 5,226.46-7,213.02-2,987.91

Finding the Fourth Proportional to 5,226.46, 7,213.02 and 2,987.91

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Solution

The fourth proportional to 5,226.46, 7,213.02 and 2,987.91 is: 4,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.46 : 7,213.02 = 2,987.91 : x
  2. Step 2: Convert to fraction form
    5,226.46/7,213.02 = 2,987.91/x
  3. Step 3: Cross multiply
    5,226.46x = 7,213.02 × 2,987.91
  4. Step 4: Simplify right side
    5,226.46x = 21,551,854.59
  5. Step 5: Solve for x
    x = 21,551,854.59/5,226.46
  6. Step 6: Final answer
    x = 4,123.60

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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.