Home / 2,170.11-3,248.69-1,398.99

Finding the Fourth Proportional to 2,170.11, 3,248.69 and 1,398.99

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Solution

The fourth proportional to 2,170.11, 3,248.69 and 1,398.99 is: 2,094.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.11 : 3,248.69 = 1,398.99 : x
  2. Step 2: Convert to fraction form
    2,170.11/3,248.69 = 1,398.99/x
  3. Step 3: Cross multiply
    2,170.11x = 3,248.69 × 1,398.99
  4. Step 4: Simplify right side
    2,170.11x = 4,544,877.83
  5. Step 5: Solve for x
    x = 4,544,877.83/2,170.11
  6. Step 6: Final answer
    x = 2,094.31

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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.