Home / 2,020.43-2,790.77-1,545.43

Finding the Fourth Proportional to 2,020.43, 2,790.77 and 1,545.43

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Solution

The fourth proportional to 2,020.43, 2,790.77 and 1,545.43 is: 2,134.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.43 : 2,790.77 = 1,545.43 : x
  2. Step 2: Convert to fraction form
    2,020.43/2,790.77 = 1,545.43/x
  3. Step 3: Cross multiply
    2,020.43x = 2,790.77 × 1,545.43
  4. Step 4: Simplify right side
    2,020.43x = 4,312,939.68
  5. Step 5: Solve for x
    x = 4,312,939.68/2,020.43
  6. Step 6: Final answer
    x = 2,134.66

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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.