Home / 2,058.51-2,839.68-1,311.17

Finding the Fourth Proportional to 2,058.51, 2,839.68 and 1,311.17

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Solution

The fourth proportional to 2,058.51, 2,839.68 and 1,311.17 is: 1,808.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.51 : 2,839.68 = 1,311.17 : x
  2. Step 2: Convert to fraction form
    2,058.51/2,839.68 = 1,311.17/x
  3. Step 3: Cross multiply
    2,058.51x = 2,839.68 × 1,311.17
  4. Step 4: Simplify right side
    2,058.51x = 3,723,320.67
  5. Step 5: Solve for x
    x = 3,723,320.67/2,058.51
  6. Step 6: Final answer
    x = 1,808.74

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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.