Home / 2,685.04-4,019.12-1,847.20

Finding the Fourth Proportional to 2,685.04, 4,019.12 and 1,847.20

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Solution

The fourth proportional to 2,685.04, 4,019.12 and 1,847.20 is: 2,764.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.04 : 4,019.12 = 1,847.20 : x
  2. Step 2: Convert to fraction form
    2,685.04/4,019.12 = 1,847.20/x
  3. Step 3: Cross multiply
    2,685.04x = 4,019.12 × 1,847.20
  4. Step 4: Simplify right side
    2,685.04x = 7,424,118.46
  5. Step 5: Solve for x
    x = 7,424,118.46/2,685.04
  6. Step 6: Final answer
    x = 2,764.99

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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.