Home / 2,027.80-2,798.10-1,143.52

Finding the Fourth Proportional to 2,027.80, 2,798.10 and 1,143.52

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Solution

The fourth proportional to 2,027.80, 2,798.10 and 1,143.52 is: 1,577.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.80 : 2,798.10 = 1,143.52 : x
  2. Step 2: Convert to fraction form
    2,027.80/2,798.10 = 1,143.52/x
  3. Step 3: Cross multiply
    2,027.80x = 2,798.10 × 1,143.52
  4. Step 4: Simplify right side
    2,027.80x = 3,199,683.31
  5. Step 5: Solve for x
    x = 3,199,683.31/2,027.80
  6. Step 6: Final answer
    x = 1,577.91

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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.