Home / 5,345.13-7,376.26-2,987.27

Finding the Fourth Proportional to 5,345.13, 7,376.26 and 2,987.27

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Solution

The fourth proportional to 5,345.13, 7,376.26 and 2,987.27 is: 4,122.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.13 : 7,376.26 = 2,987.27 : x
  2. Step 2: Convert to fraction form
    5,345.13/7,376.26 = 2,987.27/x
  3. Step 3: Cross multiply
    5,345.13x = 7,376.26 × 2,987.27
  4. Step 4: Simplify right side
    5,345.13x = 22,034,902.38
  5. Step 5: Solve for x
    x = 22,034,902.38/5,345.13
  6. Step 6: Final answer
    x = 4,122.43

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Half scale
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Double scale
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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.