Home / 1,335.38-1,838.45-1,160.66

Finding the Fourth Proportional to 1,335.38, 1,838.45 and 1,160.66

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Solution

The fourth proportional to 1,335.38, 1,838.45 and 1,160.66 is: 1,597.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.38 : 1,838.45 = 1,160.66 : x
  2. Step 2: Convert to fraction form
    1,335.38/1,838.45 = 1,160.66/x
  3. Step 3: Cross multiply
    1,335.38x = 1,838.45 × 1,160.66
  4. Step 4: Simplify right side
    1,335.38x = 2,133,822.87
  5. Step 5: Solve for x
    x = 2,133,822.87/1,335.38
  6. Step 6: Final answer
    x = 1,597.92

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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.