Home / 6,110.40-8,432.31-3,315.90

Finding the Fourth Proportional to 6,110.40, 8,432.31 and 3,315.90

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Solution

The fourth proportional to 6,110.40, 8,432.31 and 3,315.90 is: 4,575.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,110.40 : 8,432.31 = 3,315.90 : x
  2. Step 2: Convert to fraction form
    6,110.40/8,432.31 = 3,315.90/x
  3. Step 3: Cross multiply
    6,110.40x = 8,432.31 × 3,315.90
  4. Step 4: Simplify right side
    6,110.40x = 27,960,663.21
  5. Step 5: Solve for x
    x = 27,960,663.21/6,110.40
  6. Step 6: Final answer
    x = 4,575.92

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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.