Home / 5,047.84-6,961.92-4,155.76

Finding the Fourth Proportional to 5,047.84, 6,961.92 and 4,155.76

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Solution

The fourth proportional to 5,047.84, 6,961.92 and 4,155.76 is: 5,731.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,047.84 : 6,961.92 = 4,155.76 : x
  2. Step 2: Convert to fraction form
    5,047.84/6,961.92 = 4,155.76/x
  3. Step 3: Cross multiply
    5,047.84x = 6,961.92 × 4,155.76
  4. Step 4: Simplify right side
    5,047.84x = 28,932,068.66
  5. Step 5: Solve for x
    x = 28,932,068.66/5,047.84
  6. Step 6: Final answer
    x = 5,731.57

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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.