Home / 5,519.16-7,618.65-3,395.55

Finding the Fourth Proportional to 5,519.16, 7,618.65 and 3,395.55

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Solution

The fourth proportional to 5,519.16, 7,618.65 and 3,395.55 is: 4,687.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.16 : 7,618.65 = 3,395.55 : x
  2. Step 2: Convert to fraction form
    5,519.16/7,618.65 = 3,395.55/x
  3. Step 3: Cross multiply
    5,519.16x = 7,618.65 × 3,395.55
  4. Step 4: Simplify right side
    5,519.16x = 25,869,548.31
  5. Step 5: Solve for x
    x = 25,869,548.31/5,519.16
  6. Step 6: Final answer
    x = 4,687.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.