Home / 5,440.29-7,507.59-3,315.81

Finding the Fourth Proportional to 5,440.29, 7,507.59 and 3,315.81

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Solution

The fourth proportional to 5,440.29, 7,507.59 and 3,315.81 is: 4,575.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.29 : 7,507.59 = 3,315.81 : x
  2. Step 2: Convert to fraction form
    5,440.29/7,507.59 = 3,315.81/x
  3. Step 3: Cross multiply
    5,440.29x = 7,507.59 × 3,315.81
  4. Step 4: Simplify right side
    5,440.29x = 24,893,757.72
  5. Step 5: Solve for x
    x = 24,893,757.72/5,440.29
  6. Step 6: Final answer
    x = 4,575.82

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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.