Home / 1,335.13-1,838.12-1,160.40

Finding the Fourth Proportional to 1,335.13, 1,838.12 and 1,160.40

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Solution

The fourth proportional to 1,335.13, 1,838.12 and 1,160.40 is: 1,597.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.13 : 1,838.12 = 1,160.40 : x
  2. Step 2: Convert to fraction form
    1,335.13/1,838.12 = 1,160.40/x
  3. Step 3: Cross multiply
    1,335.13x = 1,838.12 × 1,160.40
  4. Step 4: Simplify right side
    1,335.13x = 2,132,954.45
  5. Step 5: Solve for x
    x = 2,132,954.45/1,335.13
  6. Step 6: Final answer
    x = 1,597.56

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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.