Home / 2,121.04-3,177.78-1,470.52

Finding the Fourth Proportional to 2,121.04, 3,177.78 and 1,470.52

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Solution

The fourth proportional to 2,121.04, 3,177.78 and 1,470.52 is: 2,203.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.04 : 3,177.78 = 1,470.52 : x
  2. Step 2: Convert to fraction form
    2,121.04/3,177.78 = 1,470.52/x
  3. Step 3: Cross multiply
    2,121.04x = 3,177.78 × 1,470.52
  4. Step 4: Simplify right side
    2,121.04x = 4,672,989.05
  5. Step 5: Solve for x
    x = 4,672,989.05/2,121.04
  6. Step 6: Final answer
    x = 2,203.16

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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.