Home / 2,058.74-2,839.14-1,311.92

Finding the Fourth Proportional to 2,058.74, 2,839.14 and 1,311.92

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Solution

The fourth proportional to 2,058.74, 2,839.14 and 1,311.92 is: 1,809.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.74 : 2,839.14 = 1,311.92 : x
  2. Step 2: Convert to fraction form
    2,058.74/2,839.14 = 1,311.92/x
  3. Step 3: Cross multiply
    2,058.74x = 2,839.14 × 1,311.92
  4. Step 4: Simplify right side
    2,058.74x = 3,724,724.55
  5. Step 5: Solve for x
    x = 3,724,724.55/2,058.74
  6. Step 6: Final answer
    x = 1,809.23

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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.