Home / 5,774.28-7,968.47-3,121.66

Finding the Fourth Proportional to 5,774.28, 7,968.47 and 3,121.66

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Solution

The fourth proportional to 5,774.28, 7,968.47 and 3,121.66 is: 4,307.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,774.28 : 7,968.47 = 3,121.66 : x
  2. Step 2: Convert to fraction form
    5,774.28/7,968.47 = 3,121.66/x
  3. Step 3: Cross multiply
    5,774.28x = 7,968.47 × 3,121.66
  4. Step 4: Simplify right side
    5,774.28x = 24,874,854.06
  5. Step 5: Solve for x
    x = 24,874,854.06/5,774.28
  6. Step 6: Final answer
    x = 4,307.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.