Home / 5,345.24-7,376.65-2,987.38

Finding the Fourth Proportional to 5,345.24, 7,376.65 and 2,987.38

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Solution

The fourth proportional to 5,345.24, 7,376.65 and 2,987.38 is: 4,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.24 : 7,376.65 = 2,987.38 : x
  2. Step 2: Convert to fraction form
    5,345.24/7,376.65 = 2,987.38/x
  3. Step 3: Cross multiply
    5,345.24x = 7,376.65 × 2,987.38
  4. Step 4: Simplify right side
    5,345.24x = 22,036,819.79
  5. Step 5: Solve for x
    x = 22,036,819.79/5,345.24
  6. Step 6: Final answer
    x = 4,122.70

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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.