Home / 3,691.34-5,535.65-1,225.70

Finding the Fourth Proportional to 3,691.34, 5,535.65 and 1,225.70

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Solution

The fourth proportional to 3,691.34, 5,535.65 and 1,225.70 is: 1,838.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.34 : 5,535.65 = 1,225.70 : x
  2. Step 2: Convert to fraction form
    3,691.34/5,535.65 = 1,225.70/x
  3. Step 3: Cross multiply
    3,691.34x = 5,535.65 × 1,225.70
  4. Step 4: Simplify right side
    3,691.34x = 6,785,018.53
  5. Step 5: Solve for x
    x = 6,785,018.53/3,691.34
  6. Step 6: Final answer
    x = 1,838.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.