Home / 8,101.40-12,155.02-2,837.20

Finding the Fourth Proportional to 8,101.40, 12,155.02 and 2,837.20

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Solution

The fourth proportional to 8,101.40, 12,155.02 and 2,837.20 is: 4,256.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.40 : 12,155.02 = 2,837.20 : x
  2. Step 2: Convert to fraction form
    8,101.40/12,155.02 = 2,837.20/x
  3. Step 3: Cross multiply
    8,101.40x = 12,155.02 × 2,837.20
  4. Step 4: Simplify right side
    8,101.40x = 34,486,222.74
  5. Step 5: Solve for x
    x = 34,486,222.74/8,101.40
  6. Step 6: Final answer
    x = 4,256.82

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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.