Home / 6,419.40-8,862.66-5,071.56

Finding the Fourth Proportional to 6,419.40, 8,862.66 and 5,071.56

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Solution

The fourth proportional to 6,419.40, 8,862.66 and 5,071.56 is: 7,001.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.40 : 8,862.66 = 5,071.56 : x
  2. Step 2: Convert to fraction form
    6,419.40/8,862.66 = 5,071.56/x
  3. Step 3: Cross multiply
    6,419.40x = 8,862.66 × 5,071.56
  4. Step 4: Simplify right side
    6,419.40x = 44,947,511.95
  5. Step 5: Solve for x
    x = 44,947,511.95/6,419.40
  6. Step 6: Final answer
    x = 7,001.82

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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.