Home / 1,674.50-2,310.75-928.44

Finding the Fourth Proportional to 1,674.50, 2,310.75 and 928.44

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Solution

The fourth proportional to 1,674.50, 2,310.75 and 928.44 is: 1,281.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.50 : 2,310.75 = 928.44 : x
  2. Step 2: Convert to fraction form
    1,674.50/2,310.75 = 928.44/x
  3. Step 3: Cross multiply
    1,674.50x = 2,310.75 × 928.44
  4. Step 4: Simplify right side
    1,674.50x = 2,145,392.73
  5. Step 5: Solve for x
    x = 2,145,392.73/1,674.50
  6. Step 6: Final answer
    x = 1,281.22

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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.