Home / 5,221.40-7,832.09-1,888.87

Finding the Fourth Proportional to 5,221.40, 7,832.09 and 1,888.87

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Solution

The fourth proportional to 5,221.40, 7,832.09 and 1,888.87 is: 2,833.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.40 : 7,832.09 = 1,888.87 : x
  2. Step 2: Convert to fraction form
    5,221.40/7,832.09 = 1,888.87/x
  3. Step 3: Cross multiply
    5,221.40x = 7,832.09 × 1,888.87
  4. Step 4: Simplify right side
    5,221.40x = 14,793,758.66
  5. Step 5: Solve for x
    x = 14,793,758.66/5,221.40
  6. Step 6: Final answer
    x = 2,833.30

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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.