Home / 1,677.11-2,314.26-931.05

Finding the Fourth Proportional to 1,677.11, 2,314.26 and 931.05

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Solution

The fourth proportional to 1,677.11, 2,314.26 and 931.05 is: 1,284.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.11 : 2,314.26 = 931.05 : x
  2. Step 2: Convert to fraction form
    1,677.11/2,314.26 = 931.05/x
  3. Step 3: Cross multiply
    1,677.11x = 2,314.26 × 931.05
  4. Step 4: Simplify right side
    1,677.11x = 2,154,691.77
  5. Step 5: Solve for x
    x = 2,154,691.77/1,677.11
  6. Step 6: Final answer
    x = 1,284.77

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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.