Home / 1,535.76-2,119.57-946.49

Finding the Fourth Proportional to 1,535.76, 2,119.57 and 946.49

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Solution

The fourth proportional to 1,535.76, 2,119.57 and 946.49 is: 1,306.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.76 : 2,119.57 = 946.49 : x
  2. Step 2: Convert to fraction form
    1,535.76/2,119.57 = 946.49/x
  3. Step 3: Cross multiply
    1,535.76x = 2,119.57 × 946.49
  4. Step 4: Simplify right side
    1,535.76x = 2,006,138.85
  5. Step 5: Solve for x
    x = 2,006,138.85/1,535.76
  6. Step 6: Final answer
    x = 1,306.28

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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.