Home / 5,612.71-8,408.28-3,140.03

Finding the Fourth Proportional to 5,612.71, 8,408.28 and 3,140.03

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Solution

The fourth proportional to 5,612.71, 8,408.28 and 3,140.03 is: 4,704.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.71 : 8,408.28 = 3,140.03 : x
  2. Step 2: Convert to fraction form
    5,612.71/8,408.28 = 3,140.03/x
  3. Step 3: Cross multiply
    5,612.71x = 8,408.28 × 3,140.03
  4. Step 4: Simplify right side
    5,612.71x = 26,402,193.71
  5. Step 5: Solve for x
    x = 26,402,193.71/5,612.71
  6. Step 6: Final answer
    x = 4,704.01

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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.