Home / 3,126.13-4,685.66-1,045.65

Finding the Fourth Proportional to 3,126.13, 4,685.66 and 1,045.65

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Solution

The fourth proportional to 3,126.13, 4,685.66 and 1,045.65 is: 1,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.13 : 4,685.66 = 1,045.65 : x
  2. Step 2: Convert to fraction form
    3,126.13/4,685.66 = 1,045.65/x
  3. Step 3: Cross multiply
    3,126.13x = 4,685.66 × 1,045.65
  4. Step 4: Simplify right side
    3,126.13x = 4,899,556.17
  5. Step 5: Solve for x
    x = 4,899,556.17/3,126.13
  6. Step 6: Final answer
    x = 1,567.29

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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.