Home / 1,521.85-2,280.48-1,174.66

Finding the Fourth Proportional to 1,521.85, 2,280.48 and 1,174.66

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Solution

The fourth proportional to 1,521.85, 2,280.48 and 1,174.66 is: 1,760.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.85 : 2,280.48 = 1,174.66 : x
  2. Step 2: Convert to fraction form
    1,521.85/2,280.48 = 1,174.66/x
  3. Step 3: Cross multiply
    1,521.85x = 2,280.48 × 1,174.66
  4. Step 4: Simplify right side
    1,521.85x = 2,678,777.23
  5. Step 5: Solve for x
    x = 2,678,777.23/1,521.85
  6. Step 6: Final answer
    x = 1,760.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.