Home / 3,707.15-5,561.78-1,242.12

Finding the Fourth Proportional to 3,707.15, 5,561.78 and 1,242.12

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Solution

The fourth proportional to 3,707.15, 5,561.78 and 1,242.12 is: 1,863.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.15 : 5,561.78 = 1,242.12 : x
  2. Step 2: Convert to fraction form
    3,707.15/5,561.78 = 1,242.12/x
  3. Step 3: Cross multiply
    3,707.15x = 5,561.78 × 1,242.12
  4. Step 4: Simplify right side
    3,707.15x = 6,908,398.17
  5. Step 5: Solve for x
    x = 6,908,398.17/3,707.15
  6. Step 6: Final answer
    x = 1,863.53

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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.