Home / 5,749-7,934.58-3,391.72

Finding the Fourth Proportional to 5,749, 7,934.58 and 3,391.72

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Solution

The fourth proportional to 5,749, 7,934.58 and 3,391.72 is: 4,681.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,749 : 7,934.58 = 3,391.72 : x
  2. Step 2: Convert to fraction form
    5,749/7,934.58 = 3,391.72/x
  3. Step 3: Cross multiply
    5,749x = 7,934.58 × 3,391.72
  4. Step 4: Simplify right side
    5,749x = 26,911,873.68
  5. Step 5: Solve for x
    x = 26,911,873.68/5,749
  6. Step 6: Final answer
    x = 4,681.14

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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.