Home / 2,917.76-4,377.11-1,071.45

Finding the Fourth Proportional to 2,917.76, 4,377.11 and 1,071.45

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Solution

The fourth proportional to 2,917.76, 4,377.11 and 1,071.45 is: 1,607.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.76 : 4,377.11 = 1,071.45 : x
  2. Step 2: Convert to fraction form
    2,917.76/4,377.11 = 1,071.45/x
  3. Step 3: Cross multiply
    2,917.76x = 4,377.11 × 1,071.45
  4. Step 4: Simplify right side
    2,917.76x = 4,689,849.15
  5. Step 5: Solve for x
    x = 4,689,849.15/2,917.76
  6. Step 6: Final answer
    x = 1,607.35

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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.