Home / 2,957.24-4,432.86-1,917.90

Finding the Fourth Proportional to 2,957.24, 4,432.86 and 1,917.90

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Solution

The fourth proportional to 2,957.24, 4,432.86 and 1,917.90 is: 2,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.24 : 4,432.86 = 1,917.90 : x
  2. Step 2: Convert to fraction form
    2,957.24/4,432.86 = 1,917.90/x
  3. Step 3: Cross multiply
    2,957.24x = 4,432.86 × 1,917.90
  4. Step 4: Simplify right side
    2,957.24x = 8,501,782.19
  5. Step 5: Solve for x
    x = 8,501,782.19/2,957.24
  6. Step 6: Final answer
    x = 2,874.90

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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.