Home / 5,244.30-7,870.10-3,390.82

Finding the Fourth Proportional to 5,244.30, 7,870.10 and 3,390.82

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Solution

The fourth proportional to 5,244.30, 7,870.10 and 3,390.82 is: 5,088.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,244.30 : 7,870.10 = 3,390.82 : x
  2. Step 2: Convert to fraction form
    5,244.30/7,870.10 = 3,390.82/x
  3. Step 3: Cross multiply
    5,244.30x = 7,870.10 × 3,390.82
  4. Step 4: Simplify right side
    5,244.30x = 26,686,092.48
  5. Step 5: Solve for x
    x = 26,686,092.48/5,244.30
  6. Step 6: Final answer
    x = 5,088.59

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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.