Home / 6,440.60-8,886.84-5,443.76

Finding the Fourth Proportional to 6,440.60, 8,886.84 and 5,443.76

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Solution

The fourth proportional to 6,440.60, 8,886.84 and 5,443.76 is: 7,511.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.60 : 8,886.84 = 5,443.76 : x
  2. Step 2: Convert to fraction form
    6,440.60/8,886.84 = 5,443.76/x
  3. Step 3: Cross multiply
    6,440.60x = 8,886.84 × 5,443.76
  4. Step 4: Simplify right side
    6,440.60x = 48,377,824.12
  5. Step 5: Solve for x
    x = 48,377,824.12/6,440.60
  6. Step 6: Final answer
    x = 7,511.38

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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.