Home / 5,386.38-7,433.48-3,148.12

Finding the Fourth Proportional to 5,386.38, 7,433.48 and 3,148.12

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Solution

The fourth proportional to 5,386.38, 7,433.48 and 3,148.12 is: 4,344.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.38 : 7,433.48 = 3,148.12 : x
  2. Step 2: Convert to fraction form
    5,386.38/7,433.48 = 3,148.12/x
  3. Step 3: Cross multiply
    5,386.38x = 7,433.48 × 3,148.12
  4. Step 4: Simplify right side
    5,386.38x = 23,401,487.06
  5. Step 5: Solve for x
    x = 23,401,487.06/5,386.38
  6. Step 6: Final answer
    x = 4,344.57

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Half scale
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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.