Home / 5,401.13-8,101.69-1,297.13

Finding the Fourth Proportional to 5,401.13, 8,101.69 and 1,297.13

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Solution

The fourth proportional to 5,401.13, 8,101.69 and 1,297.13 is: 1,945.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,401.13 : 8,101.69 = 1,297.13 : x
  2. Step 2: Convert to fraction form
    5,401.13/8,101.69 = 1,297.13/x
  3. Step 3: Cross multiply
    5,401.13x = 8,101.69 × 1,297.13
  4. Step 4: Simplify right side
    5,401.13x = 10,508,901.40
  5. Step 5: Solve for x
    x = 10,508,901.40/5,401.13
  6. Step 6: Final answer
    x = 1,945.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.