Home / 2,058.28-2,840.40-1,126.80

Finding the Fourth Proportional to 2,058.28, 2,840.40 and 1,126.80

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Solution

The fourth proportional to 2,058.28, 2,840.40 and 1,126.80 is: 1,554.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.28 : 2,840.40 = 1,126.80 : x
  2. Step 2: Convert to fraction form
    2,058.28/2,840.40 = 1,126.80/x
  3. Step 3: Cross multiply
    2,058.28x = 2,840.40 × 1,126.80
  4. Step 4: Simplify right side
    2,058.28x = 3,200,562.72
  5. Step 5: Solve for x
    x = 3,200,562.72/2,058.28
  6. Step 6: Final answer
    x = 1,554.97

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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.