Home / 1,260.11-1,734.98-1,143.34

Finding the Fourth Proportional to 1,260.11, 1,734.98 and 1,143.34

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Solution

The fourth proportional to 1,260.11, 1,734.98 and 1,143.34 is: 1,574.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.11 : 1,734.98 = 1,143.34 : x
  2. Step 2: Convert to fraction form
    1,260.11/1,734.98 = 1,143.34/x
  3. Step 3: Cross multiply
    1,260.11x = 1,734.98 × 1,143.34
  4. Step 4: Simplify right side
    1,260.11x = 1,983,663.57
  5. Step 5: Solve for x
    x = 1,983,663.57/1,260.11
  6. Step 6: Final answer
    x = 1,574.20

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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.