Home / 5,618.26-8,428.71-1,920.52

Finding the Fourth Proportional to 5,618.26, 8,428.71 and 1,920.52

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Solution

The fourth proportional to 5,618.26, 8,428.71 and 1,920.52 is: 2,881.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.26 : 8,428.71 = 1,920.52 : x
  2. Step 2: Convert to fraction form
    5,618.26/8,428.71 = 1,920.52/x
  3. Step 3: Cross multiply
    5,618.26x = 8,428.71 × 1,920.52
  4. Step 4: Simplify right side
    5,618.26x = 16,187,506.13
  5. Step 5: Solve for x
    x = 16,187,506.13/5,618.26
  6. Step 6: Final answer
    x = 2,881.23

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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.