Home / 5,345.79-7,377.20-2,987.93

Finding the Fourth Proportional to 5,345.79, 7,377.20 and 2,987.93

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Solution

The fourth proportional to 5,345.79, 7,377.20 and 2,987.93 is: 4,123.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.79 : 7,377.20 = 2,987.93 : x
  2. Step 2: Convert to fraction form
    5,345.79/7,377.20 = 2,987.93/x
  3. Step 3: Cross multiply
    5,345.79x = 7,377.20 × 2,987.93
  4. Step 4: Simplify right side
    5,345.79x = 22,042,531.28
  5. Step 5: Solve for x
    x = 22,042,531.28/5,345.79
  6. Step 6: Final answer
    x = 4,123.35

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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.