Home / 5,587.76-8,381.64-2,987.12

Finding the Fourth Proportional to 5,587.76, 8,381.64 and 2,987.12

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Solution

The fourth proportional to 5,587.76, 8,381.64 and 2,987.12 is: 4,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.76 : 8,381.64 = 2,987.12 : x
  2. Step 2: Convert to fraction form
    5,587.76/8,381.64 = 2,987.12/x
  3. Step 3: Cross multiply
    5,587.76x = 8,381.64 × 2,987.12
  4. Step 4: Simplify right side
    5,587.76x = 25,036,964.48
  5. Step 5: Solve for x
    x = 25,036,964.48/5,587.76
  6. Step 6: Final answer
    x = 4,480.68

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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.