Home / 3,518.59-5,277.94-921.53

Finding the Fourth Proportional to 3,518.59, 5,277.94 and 921.53

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Solution

The fourth proportional to 3,518.59, 5,277.94 and 921.53 is: 1,382.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.59 : 5,277.94 = 921.53 : x
  2. Step 2: Convert to fraction form
    3,518.59/5,277.94 = 921.53/x
  3. Step 3: Cross multiply
    3,518.59x = 5,277.94 × 921.53
  4. Step 4: Simplify right side
    3,518.59x = 4,863,780.05
  5. Step 5: Solve for x
    x = 4,863,780.05/3,518.59
  6. Step 6: Final answer
    x = 1,382.31

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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.