Home / 2,149.49-2,966.76-1,478.18

Finding the Fourth Proportional to 2,149.49, 2,966.76 and 1,478.18

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Solution

The fourth proportional to 2,149.49, 2,966.76 and 1,478.18 is: 2,040.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.49 : 2,966.76 = 1,478.18 : x
  2. Step 2: Convert to fraction form
    2,149.49/2,966.76 = 1,478.18/x
  3. Step 3: Cross multiply
    2,149.49x = 2,966.76 × 1,478.18
  4. Step 4: Simplify right side
    2,149.49x = 4,385,390.46
  5. Step 5: Solve for x
    x = 4,385,390.46/2,149.49
  6. Step 6: Final answer
    x = 2,040.21

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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.