Home / 5,639.04-8,458.56-2,718.72

Finding the Fourth Proportional to 5,639.04, 8,458.56 and 2,718.72

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Solution

The fourth proportional to 5,639.04, 8,458.56 and 2,718.72 is: 4,078.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.04 : 8,458.56 = 2,718.72 : x
  2. Step 2: Convert to fraction form
    5,639.04/8,458.56 = 2,718.72/x
  3. Step 3: Cross multiply
    5,639.04x = 8,458.56 × 2,718.72
  4. Step 4: Simplify right side
    5,639.04x = 22,996,456.24
  5. Step 5: Solve for x
    x = 22,996,456.24/5,639.04
  6. Step 6: Final answer
    x = 4,078.08

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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.