Home / 5,124.61-7,071.88-2,886.70

Finding the Fourth Proportional to 5,124.61, 7,071.88 and 2,886.70

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Solution

The fourth proportional to 5,124.61, 7,071.88 and 2,886.70 is: 3,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.61 : 7,071.88 = 2,886.70 : x
  2. Step 2: Convert to fraction form
    5,124.61/7,071.88 = 2,886.70/x
  3. Step 3: Cross multiply
    5,124.61x = 7,071.88 × 2,886.70
  4. Step 4: Simplify right side
    5,124.61x = 20,414,371.10
  5. Step 5: Solve for x
    x = 20,414,371.10/5,124.61
  6. Step 6: Final answer
    x = 3,983.60

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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.