Home / 5,154.22-7,112.28-2,915.74

Finding the Fourth Proportional to 5,154.22, 7,112.28 and 2,915.74

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Solution

The fourth proportional to 5,154.22, 7,112.28 and 2,915.74 is: 4,023.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.22 : 7,112.28 = 2,915.74 : x
  2. Step 2: Convert to fraction form
    5,154.22/7,112.28 = 2,915.74/x
  3. Step 3: Cross multiply
    5,154.22x = 7,112.28 × 2,915.74
  4. Step 4: Simplify right side
    5,154.22x = 20,737,559.29
  5. Step 5: Solve for x
    x = 20,737,559.29/5,154.22
  6. Step 6: Final answer
    x = 4,023.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.