Home / 2,002.15-2,763.03-1,117.90

Finding the Fourth Proportional to 2,002.15, 2,763.03 and 1,117.90

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Solution

The fourth proportional to 2,002.15, 2,763.03 and 1,117.90 is: 1,542.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,002.15 : 2,763.03 = 1,117.90 : x
  2. Step 2: Convert to fraction form
    2,002.15/2,763.03 = 1,117.90/x
  3. Step 3: Cross multiply
    2,002.15x = 2,763.03 × 1,117.90
  4. Step 4: Simplify right side
    2,002.15x = 3,088,791.24
  5. Step 5: Solve for x
    x = 3,088,791.24/2,002.15
  6. Step 6: Final answer
    x = 1,542.74

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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.