Home / 1,549.40-2,124.16-1,521.79

Finding the Fourth Proportional to 1,549.40, 2,124.16 and 1,521.79

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Solution

The fourth proportional to 1,549.40, 2,124.16 and 1,521.79 is: 2,086.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.40 : 2,124.16 = 1,521.79 : x
  2. Step 2: Convert to fraction form
    1,549.40/2,124.16 = 1,521.79/x
  3. Step 3: Cross multiply
    1,549.40x = 2,124.16 × 1,521.79
  4. Step 4: Simplify right side
    1,549.40x = 3,232,516.33
  5. Step 5: Solve for x
    x = 3,232,516.33/1,549.40
  6. Step 6: Final answer
    x = 2,086.31

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.