Home / 5,140.72-7,711.08-1,443.34

Finding the Fourth Proportional to 5,140.72, 7,711.08 and 1,443.34

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Solution

The fourth proportional to 5,140.72, 7,711.08 and 1,443.34 is: 2,165.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.72 : 7,711.08 = 1,443.34 : x
  2. Step 2: Convert to fraction form
    5,140.72/7,711.08 = 1,443.34/x
  3. Step 3: Cross multiply
    5,140.72x = 7,711.08 × 1,443.34
  4. Step 4: Simplify right side
    5,140.72x = 11,129,710.21
  5. Step 5: Solve for x
    x = 11,129,710.21/5,140.72
  6. Step 6: Final answer
    x = 2,165.01

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.