Home / 1,544.20-2,316.28-389.95

Finding the Fourth Proportional to 1,544.20, 2,316.28 and 389.95

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Solution

The fourth proportional to 1,544.20, 2,316.28 and 389.95 is: 584.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.20 : 2,316.28 = 389.95 : x
  2. Step 2: Convert to fraction form
    1,544.20/2,316.28 = 389.95/x
  3. Step 3: Cross multiply
    1,544.20x = 2,316.28 × 389.95
  4. Step 4: Simplify right side
    1,544.20x = 903,233.39
  5. Step 5: Solve for x
    x = 903,233.39/1,544.20
  6. Step 6: Final answer
    x = 584.92

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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.