Home / 1,877.11-2,588.68-1,728.06

Finding the Fourth Proportional to 1,877.11, 2,588.68 and 1,728.06

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Solution

The fourth proportional to 1,877.11, 2,588.68 and 1,728.06 is: 2,383.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.11 : 2,588.68 = 1,728.06 : x
  2. Step 2: Convert to fraction form
    1,877.11/2,588.68 = 1,728.06/x
  3. Step 3: Cross multiply
    1,877.11x = 2,588.68 × 1,728.06
  4. Step 4: Simplify right side
    1,877.11x = 4,473,394.36
  5. Step 5: Solve for x
    x = 4,473,394.36/1,877.11
  6. Step 6: Final answer
    x = 2,383.13

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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.