Home / 2,922.30-4,386.15-2,511.90

Finding the Fourth Proportional to 2,922.30, 4,386.15 and 2,511.90

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Solution

The fourth proportional to 2,922.30, 4,386.15 and 2,511.90 is: 3,770.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.30 : 4,386.15 = 2,511.90 : x
  2. Step 2: Convert to fraction form
    2,922.30/4,386.15 = 2,511.90/x
  3. Step 3: Cross multiply
    2,922.30x = 4,386.15 × 2,511.90
  4. Step 4: Simplify right side
    2,922.30x = 11,017,570.19
  5. Step 5: Solve for x
    x = 11,017,570.19/2,922.30
  6. Step 6: Final answer
    x = 3,770.17

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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.