Home / 3,589.26-5,386.30-1,280.76

Finding the Fourth Proportional to 3,589.26, 5,386.30 and 1,280.76

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Solution

The fourth proportional to 3,589.26, 5,386.30 and 1,280.76 is: 1,922.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.26 : 5,386.30 = 1,280.76 : x
  2. Step 2: Convert to fraction form
    3,589.26/5,386.30 = 1,280.76/x
  3. Step 3: Cross multiply
    3,589.26x = 5,386.30 × 1,280.76
  4. Step 4: Simplify right side
    3,589.26x = 6,898,557.59
  5. Step 5: Solve for x
    x = 6,898,557.59/3,589.26
  6. Step 6: Final answer
    x = 1,922.00

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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.