Home / 4,877.12-7,315.56-1,414.40

Finding the Fourth Proportional to 4,877.12, 7,315.56 and 1,414.40

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Solution

The fourth proportional to 4,877.12, 7,315.56 and 1,414.40 is: 2,121.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.12 : 7,315.56 = 1,414.40 : x
  2. Step 2: Convert to fraction form
    4,877.12/7,315.56 = 1,414.40/x
  3. Step 3: Cross multiply
    4,877.12x = 7,315.56 × 1,414.40
  4. Step 4: Simplify right side
    4,877.12x = 10,347,128.06
  5. Step 5: Solve for x
    x = 10,347,128.06/4,877.12
  6. Step 6: Final answer
    x = 2,121.57

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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.