Home / 4,407.28-6,611.56-1,329.20

Finding the Fourth Proportional to 4,407.28, 6,611.56 and 1,329.20

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Solution

The fourth proportional to 4,407.28, 6,611.56 and 1,329.20 is: 1,993.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,407.28 : 6,611.56 = 1,329.20 : x
  2. Step 2: Convert to fraction form
    4,407.28/6,611.56 = 1,329.20/x
  3. Step 3: Cross multiply
    4,407.28x = 6,611.56 × 1,329.20
  4. Step 4: Simplify right side
    4,407.28x = 8,788,085.55
  5. Step 5: Solve for x
    x = 8,788,085.55/4,407.28
  6. Step 6: Final answer
    x = 1,993.99

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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.