Home / 2,739.10-4,100.55-1,815.70

Finding the Fourth Proportional to 2,739.10, 4,100.55 and 1,815.70

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Solution

The fourth proportional to 2,739.10, 4,100.55 and 1,815.70 is: 2,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.10 : 4,100.55 = 1,815.70 : x
  2. Step 2: Convert to fraction form
    2,739.10/4,100.55 = 1,815.70/x
  3. Step 3: Cross multiply
    2,739.10x = 4,100.55 × 1,815.70
  4. Step 4: Simplify right side
    2,739.10x = 7,445,368.64
  5. Step 5: Solve for x
    x = 7,445,368.64/2,739.10
  6. Step 6: Final answer
    x = 2,718.18

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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.