Home / 5,677.91-7,835.69-3,125.76

Finding the Fourth Proportional to 5,677.91, 7,835.69 and 3,125.76

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Solution

The fourth proportional to 5,677.91, 7,835.69 and 3,125.76 is: 4,313.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,677.91 : 7,835.69 = 3,125.76 : x
  2. Step 2: Convert to fraction form
    5,677.91/7,835.69 = 3,125.76/x
  3. Step 3: Cross multiply
    5,677.91x = 7,835.69 × 3,125.76
  4. Step 4: Simplify right side
    5,677.91x = 24,492,470.75
  5. Step 5: Solve for x
    x = 24,492,470.75/5,677.91
  6. Step 6: Final answer
    x = 4,313.65

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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.