Home / 7,315.41-10,095.20-3,958.15

Finding the Fourth Proportional to 7,315.41, 10,095.20 and 3,958.15

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Solution

The fourth proportional to 7,315.41, 10,095.20 and 3,958.15 is: 5,462.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.41 : 10,095.20 = 3,958.15 : x
  2. Step 2: Convert to fraction form
    7,315.41/10,095.20 = 3,958.15/x
  3. Step 3: Cross multiply
    7,315.41x = 10,095.20 × 3,958.15
  4. Step 4: Simplify right side
    7,315.41x = 39,958,363.17
  5. Step 5: Solve for x
    x = 39,958,363.17/7,315.41
  6. Step 6: Final answer
    x = 5,462.21

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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.