Home / 5,649.60-8,471.52-2,187.84

Finding the Fourth Proportional to 5,649.60, 8,471.52 and 2,187.84

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Solution

The fourth proportional to 5,649.60, 8,471.52 and 2,187.84 is: 3,280.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649.60 : 8,471.52 = 2,187.84 : x
  2. Step 2: Convert to fraction form
    5,649.60/8,471.52 = 2,187.84/x
  3. Step 3: Cross multiply
    5,649.60x = 8,471.52 × 2,187.84
  4. Step 4: Simplify right side
    5,649.60x = 18,534,330.32
  5. Step 5: Solve for x
    x = 18,534,330.32/5,649.60
  6. Step 6: Final answer
    x = 3,280.64

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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.