Home / 5,616.08-8,425.40-1,720.80

Finding the Fourth Proportional to 5,616.08, 8,425.40 and 1,720.80

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Solution

The fourth proportional to 5,616.08, 8,425.40 and 1,720.80 is: 2,581.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.08 : 8,425.40 = 1,720.80 : x
  2. Step 2: Convert to fraction form
    5,616.08/8,425.40 = 1,720.80/x
  3. Step 3: Cross multiply
    5,616.08x = 8,425.40 × 1,720.80
  4. Step 4: Simplify right side
    5,616.08x = 14,498,428.32
  5. Step 5: Solve for x
    x = 14,498,428.32/5,616.08
  6. Step 6: Final answer
    x = 2,581.59

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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.