Home / 5,345.60-7,376.94-2,987.82

Finding the Fourth Proportional to 5,345.60, 7,376.94 and 2,987.82

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Solution

The fourth proportional to 5,345.60, 7,376.94 and 2,987.82 is: 4,123.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.60 : 7,376.94 = 2,987.82 : x
  2. Step 2: Convert to fraction form
    5,345.60/7,376.94 = 2,987.82/x
  3. Step 3: Cross multiply
    5,345.60x = 7,376.94 × 2,987.82
  4. Step 4: Simplify right side
    5,345.60x = 22,040,968.87
  5. Step 5: Solve for x
    x = 22,040,968.87/5,345.60
  6. Step 6: Final answer
    x = 4,123.20

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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.