Home / 4,069.60-6,104.40-991.60

Finding the Fourth Proportional to 4,069.60, 6,104.40 and 991.60

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Solution

The fourth proportional to 4,069.60, 6,104.40 and 991.60 is: 1,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,069.60 : 6,104.40 = 991.60 : x
  2. Step 2: Convert to fraction form
    4,069.60/6,104.40 = 991.60/x
  3. Step 3: Cross multiply
    4,069.60x = 6,104.40 × 991.60
  4. Step 4: Simplify right side
    4,069.60x = 6,053,123.04
  5. Step 5: Solve for x
    x = 6,053,123.04/4,069.60
  6. Step 6: Final answer
    x = 1,487.40

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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.