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Finding the Fourth Proportional to 5,913.44, 8,870.16 and 2,987.72

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Solution

The fourth proportional to 5,913.44, 8,870.16 and 2,987.72 is: 4,481.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,913.44 : 8,870.16 = 2,987.72 : x
  2. Step 2: Convert to fraction form
    5,913.44/8,870.16 = 2,987.72/x
  3. Step 3: Cross multiply
    5,913.44x = 8,870.16 × 2,987.72
  4. Step 4: Simplify right side
    5,913.44x = 26,501,554.44
  5. Step 5: Solve for x
    x = 26,501,554.44/5,913.44
  6. Step 6: Final answer
    x = 4,481.58

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Similar ratio
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1.5x scale

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.