Home / 6,655.28-9,188.12-4,420.20

Finding the Fourth Proportional to 6,655.28, 9,188.12 and 4,420.20

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Solution

The fourth proportional to 6,655.28, 9,188.12 and 4,420.20 is: 6,102.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.28 : 9,188.12 = 4,420.20 : x
  2. Step 2: Convert to fraction form
    6,655.28/9,188.12 = 4,420.20/x
  3. Step 3: Cross multiply
    6,655.28x = 9,188.12 × 4,420.20
  4. Step 4: Simplify right side
    6,655.28x = 40,613,328.02
  5. Step 5: Solve for x
    x = 40,613,328.02/6,655.28
  6. Step 6: Final answer
    x = 6,102.42

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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.