Home / 5,281.47-7,919.55-1,582.61

Finding the Fourth Proportional to 5,281.47, 7,919.55 and 1,582.61

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Solution

The fourth proportional to 5,281.47, 7,919.55 and 1,582.61 is: 2,373.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.47 : 7,919.55 = 1,582.61 : x
  2. Step 2: Convert to fraction form
    5,281.47/7,919.55 = 1,582.61/x
  3. Step 3: Cross multiply
    5,281.47x = 7,919.55 × 1,582.61
  4. Step 4: Simplify right side
    5,281.47x = 12,533,519.43
  5. Step 5: Solve for x
    x = 12,533,519.43/5,281.47
  6. Step 6: Final answer
    x = 2,373.11

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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.