Home / 5,655.60-8,479.08-2,195.28

Finding the Fourth Proportional to 5,655.60, 8,479.08 and 2,195.28

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Solution

The fourth proportional to 5,655.60, 8,479.08 and 2,195.28 is: 3,291.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,655.60 : 8,479.08 = 2,195.28 : x
  2. Step 2: Convert to fraction form
    5,655.60/8,479.08 = 2,195.28/x
  3. Step 3: Cross multiply
    5,655.60x = 8,479.08 × 2,195.28
  4. Step 4: Simplify right side
    5,655.60x = 18,613,954.74
  5. Step 5: Solve for x
    x = 18,613,954.74/5,655.60
  6. Step 6: Final answer
    x = 3,291.24

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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.