Home / 5,138.10-7,702.52-1,848.88

Finding the Fourth Proportional to 5,138.10, 7,702.52 and 1,848.88

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Solution

The fourth proportional to 5,138.10, 7,702.52 and 1,848.88 is: 2,771.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.10 : 7,702.52 = 1,848.88 : x
  2. Step 2: Convert to fraction form
    5,138.10/7,702.52 = 1,848.88/x
  3. Step 3: Cross multiply
    5,138.10x = 7,702.52 × 1,848.88
  4. Step 4: Simplify right side
    5,138.10x = 14,240,987.42
  5. Step 5: Solve for x
    x = 14,240,987.42/5,138.10
  6. Step 6: Final answer
    x = 2,771.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.