Home / 2,910.11-4,362.12-1,427.30

Finding the Fourth Proportional to 2,910.11, 4,362.12 and 1,427.30

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Solution

The fourth proportional to 2,910.11, 4,362.12 and 1,427.30 is: 2,139.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.11 : 4,362.12 = 1,427.30 : x
  2. Step 2: Convert to fraction form
    2,910.11/4,362.12 = 1,427.30/x
  3. Step 3: Cross multiply
    2,910.11x = 4,362.12 × 1,427.30
  4. Step 4: Simplify right side
    2,910.11x = 6,226,032.07
  5. Step 5: Solve for x
    x = 6,226,032.07/2,910.11
  6. Step 6: Final answer
    x = 2,139.45

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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.