Home / 2,509.80-3,761.65-2,214.55

Finding the Fourth Proportional to 2,509.80, 3,761.65 and 2,214.55

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Solution

The fourth proportional to 2,509.80, 3,761.65 and 2,214.55 is: 3,319.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509.80 : 3,761.65 = 2,214.55 : x
  2. Step 2: Convert to fraction form
    2,509.80/3,761.65 = 2,214.55/x
  3. Step 3: Cross multiply
    2,509.80x = 3,761.65 × 2,214.55
  4. Step 4: Simplify right side
    2,509.80x = 8,330,362.01
  5. Step 5: Solve for x
    x = 8,330,362.01/2,509.80
  6. Step 6: Final answer
    x = 3,319.13

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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.