Home / 3,717.86-5,576.76-1,120.79

Finding the Fourth Proportional to 3,717.86, 5,576.76 and 1,120.79

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Solution

The fourth proportional to 3,717.86, 5,576.76 and 1,120.79 is: 1,681.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.86 : 5,576.76 = 1,120.79 : x
  2. Step 2: Convert to fraction form
    3,717.86/5,576.76 = 1,120.79/x
  3. Step 3: Cross multiply
    3,717.86x = 5,576.76 × 1,120.79
  4. Step 4: Simplify right side
    3,717.86x = 6,250,390.78
  5. Step 5: Solve for x
    x = 6,250,390.78/3,717.86
  6. Step 6: Final answer
    x = 1,681.18

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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.