Home / 2,387.39-3,291.11-1,677.07

Finding the Fourth Proportional to 2,387.39, 3,291.11 and 1,677.07

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Solution

The fourth proportional to 2,387.39, 3,291.11 and 1,677.07 is: 2,311.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.39 : 3,291.11 = 1,677.07 : x
  2. Step 2: Convert to fraction form
    2,387.39/3,291.11 = 1,677.07/x
  3. Step 3: Cross multiply
    2,387.39x = 3,291.11 × 1,677.07
  4. Step 4: Simplify right side
    2,387.39x = 5,519,423.87
  5. Step 5: Solve for x
    x = 5,519,423.87/2,387.39
  6. Step 6: Final answer
    x = 2,311.91

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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.