Home / 2,132.04-2,940.19-1,385.15

Finding the Fourth Proportional to 2,132.04, 2,940.19 and 1,385.15

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Solution

The fourth proportional to 2,132.04, 2,940.19 and 1,385.15 is: 1,910.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.04 : 2,940.19 = 1,385.15 : x
  2. Step 2: Convert to fraction form
    2,132.04/2,940.19 = 1,385.15/x
  3. Step 3: Cross multiply
    2,132.04x = 2,940.19 × 1,385.15
  4. Step 4: Simplify right side
    2,132.04x = 4,072,586.01
  5. Step 5: Solve for x
    x = 4,072,586.01/2,132.04
  6. Step 6: Final answer
    x = 1,910.18

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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.