Home / 5,719.47-8,577.45-2,209.20

Finding the Fourth Proportional to 5,719.47, 8,577.45 and 2,209.20

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Solution

The fourth proportional to 5,719.47, 8,577.45 and 2,209.20 is: 3,313.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.47 : 8,577.45 = 2,209.20 : x
  2. Step 2: Convert to fraction form
    5,719.47/8,577.45 = 2,209.20/x
  3. Step 3: Cross multiply
    5,719.47x = 8,577.45 × 2,209.20
  4. Step 4: Simplify right side
    5,719.47x = 18,949,302.54
  5. Step 5: Solve for x
    x = 18,949,302.54/5,719.47
  6. Step 6: Final answer
    x = 3,313.12

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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.