Home / 5,279.83-7,919.28-1,582.90

Finding the Fourth Proportional to 5,279.83, 7,919.28 and 1,582.90

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Solution

The fourth proportional to 5,279.83, 7,919.28 and 1,582.90 is: 2,374.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.83 : 7,919.28 = 1,582.90 : x
  2. Step 2: Convert to fraction form
    5,279.83/7,919.28 = 1,582.90/x
  3. Step 3: Cross multiply
    5,279.83x = 7,919.28 × 1,582.90
  4. Step 4: Simplify right side
    5,279.83x = 12,535,408.51
  5. Step 5: Solve for x
    x = 12,535,408.51/5,279.83
  6. Step 6: Final answer
    x = 2,374.21

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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.