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Finding the Fourth Proportional to 2,347.88, 3,521.36 and 886.64

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Solution

The fourth proportional to 2,347.88, 3,521.36 and 886.64 is: 1,329.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,347.88 : 3,521.36 = 886.64 : x
  2. Step 2: Convert to fraction form
    2,347.88/3,521.36 = 886.64/x
  3. Step 3: Cross multiply
    2,347.88x = 3,521.36 × 886.64
  4. Step 4: Simplify right side
    2,347.88x = 3,122,178.63
  5. Step 5: Solve for x
    x = 3,122,178.63/2,347.88
  6. Step 6: Final answer
    x = 1,329.79

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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.