Home / 1,348.14-2,021.85-618.06

Finding the Fourth Proportional to 1,348.14, 2,021.85 and 618.06

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Solution

The fourth proportional to 1,348.14, 2,021.85 and 618.06 is: 926.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.14 : 2,021.85 = 618.06 : x
  2. Step 2: Convert to fraction form
    1,348.14/2,021.85 = 618.06/x
  3. Step 3: Cross multiply
    1,348.14x = 2,021.85 × 618.06
  4. Step 4: Simplify right side
    1,348.14x = 1,249,624.61
  5. Step 5: Solve for x
    x = 1,249,624.61/1,348.14
  6. Step 6: Final answer
    x = 926.92

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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.