Home / 1,521.36-2,281.59-699.66

Finding the Fourth Proportional to 1,521.36, 2,281.59 and 699.66

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Solution

The fourth proportional to 1,521.36, 2,281.59 and 699.66 is: 1,049.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.36 : 2,281.59 = 699.66 : x
  2. Step 2: Convert to fraction form
    1,521.36/2,281.59 = 699.66/x
  3. Step 3: Cross multiply
    1,521.36x = 2,281.59 × 699.66
  4. Step 4: Simplify right side
    1,521.36x = 1,596,337.26
  5. Step 5: Solve for x
    x = 1,596,337.26/1,521.36
  6. Step 6: Final answer
    x = 1,049.28

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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.