Home / 1,435.13-2,149.48-1,247.63

Finding the Fourth Proportional to 1,435.13, 2,149.48 and 1,247.63

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Solution

The fourth proportional to 1,435.13, 2,149.48 and 1,247.63 is: 1,868.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435.13 : 2,149.48 = 1,247.63 : x
  2. Step 2: Convert to fraction form
    1,435.13/2,149.48 = 1,247.63/x
  3. Step 3: Cross multiply
    1,435.13x = 2,149.48 × 1,247.63
  4. Step 4: Simplify right side
    1,435.13x = 2,681,755.73
  5. Step 5: Solve for x
    x = 2,681,755.73/1,435.13
  6. Step 6: Final answer
    x = 1,868.65

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1.5x scale

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.