Home / 1,674.24-2,310.48-928.20

Finding the Fourth Proportional to 1,674.24, 2,310.48 and 928.20

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Solution

The fourth proportional to 1,674.24, 2,310.48 and 928.20 is: 1,280.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.24 : 2,310.48 = 928.20 : x
  2. Step 2: Convert to fraction form
    1,674.24/2,310.48 = 928.20/x
  3. Step 3: Cross multiply
    1,674.24x = 2,310.48 × 928.20
  4. Step 4: Simplify right side
    1,674.24x = 2,144,587.54
  5. Step 5: Solve for x
    x = 2,144,587.54/1,674.24
  6. Step 6: Final answer
    x = 1,280.93

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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.