Home / 1,947.13-2,687.04-1,150.45

Finding the Fourth Proportional to 1,947.13, 2,687.04 and 1,150.45

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Solution

The fourth proportional to 1,947.13, 2,687.04 and 1,150.45 is: 1,587.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.13 : 2,687.04 = 1,150.45 : x
  2. Step 2: Convert to fraction form
    1,947.13/2,687.04 = 1,150.45/x
  3. Step 3: Cross multiply
    1,947.13x = 2,687.04 × 1,150.45
  4. Step 4: Simplify right side
    1,947.13x = 3,091,305.17
  5. Step 5: Solve for x
    x = 3,091,305.17/1,947.13
  6. Step 6: Final answer
    x = 1,587.62

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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.