Home / 1,677.48-2,314.88-931.44

Finding the Fourth Proportional to 1,677.48, 2,314.88 and 931.44

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Solution

The fourth proportional to 1,677.48, 2,314.88 and 931.44 is: 1,285.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.48 : 2,314.88 = 931.44 : x
  2. Step 2: Convert to fraction form
    1,677.48/2,314.88 = 931.44/x
  3. Step 3: Cross multiply
    1,677.48x = 2,314.88 × 931.44
  4. Step 4: Simplify right side
    1,677.48x = 2,156,171.83
  5. Step 5: Solve for x
    x = 2,156,171.83/1,677.48
  6. Step 6: Final answer
    x = 1,285.36

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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.