Home / 4,719.21-7,079.84-1,432.55

Finding the Fourth Proportional to 4,719.21, 7,079.84 and 1,432.55

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Solution

The fourth proportional to 4,719.21, 7,079.84 and 1,432.55 is: 2,149.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.21 : 7,079.84 = 1,432.55 : x
  2. Step 2: Convert to fraction form
    4,719.21/7,079.84 = 1,432.55/x
  3. Step 3: Cross multiply
    4,719.21x = 7,079.84 × 1,432.55
  4. Step 4: Simplify right side
    4,719.21x = 10,142,224.79
  5. Step 5: Solve for x
    x = 10,142,224.79/4,719.21
  6. Step 6: Final answer
    x = 2,149.14

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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.