Home / 2,923.80-4,381.86-1,385.24

Finding the Fourth Proportional to 2,923.80, 4,381.86 and 1,385.24

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Solution

The fourth proportional to 2,923.80, 4,381.86 and 1,385.24 is: 2,076.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.80 : 4,381.86 = 1,385.24 : x
  2. Step 2: Convert to fraction form
    2,923.80/4,381.86 = 1,385.24/x
  3. Step 3: Cross multiply
    2,923.80x = 4,381.86 × 1,385.24
  4. Step 4: Simplify right side
    2,923.80x = 6,069,927.75
  5. Step 5: Solve for x
    x = 6,069,927.75/2,923.80
  6. Step 6: Final answer
    x = 2,076.04

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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.