Home / 1,347.84-2,013.39-1,129.14

Finding the Fourth Proportional to 1,347.84, 2,013.39 and 1,129.14

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Solution

The fourth proportional to 1,347.84, 2,013.39 and 1,129.14 is: 1,686.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.84 : 2,013.39 = 1,129.14 : x
  2. Step 2: Convert to fraction form
    1,347.84/2,013.39 = 1,129.14/x
  3. Step 3: Cross multiply
    1,347.84x = 2,013.39 × 1,129.14
  4. Step 4: Simplify right side
    1,347.84x = 2,273,399.18
  5. Step 5: Solve for x
    x = 2,273,399.18/1,347.84
  6. Step 6: Final answer
    x = 1,686.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.