Home / 2,759.04-4,130.40-2,117.28

Finding the Fourth Proportional to 2,759.04, 4,130.40 and 2,117.28

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Solution

The fourth proportional to 2,759.04, 4,130.40 and 2,117.28 is: 3,169.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.04 : 4,130.40 = 2,117.28 : x
  2. Step 2: Convert to fraction form
    2,759.04/4,130.40 = 2,117.28/x
  3. Step 3: Cross multiply
    2,759.04x = 4,130.40 × 2,117.28
  4. Step 4: Simplify right side
    2,759.04x = 8,745,213.31
  5. Step 5: Solve for x
    x = 8,745,213.31/2,759.04
  6. Step 6: Final answer
    x = 3,169.66

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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.