Home / 5,262.52-7,261.48-3,138.72

Finding the Fourth Proportional to 5,262.52, 7,261.48 and 3,138.72

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Solution

The fourth proportional to 5,262.52, 7,261.48 and 3,138.72 is: 4,330.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,262.52 : 7,261.48 = 3,138.72 : x
  2. Step 2: Convert to fraction form
    5,262.52/7,261.48 = 3,138.72/x
  3. Step 3: Cross multiply
    5,262.52x = 7,261.48 × 3,138.72
  4. Step 4: Simplify right side
    5,262.52x = 22,791,752.51
  5. Step 5: Solve for x
    x = 22,791,752.51/5,262.52
  6. Step 6: Final answer
    x = 4,330.96

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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.