Home / 2,681.90-4,025.55-1,296.35

Finding the Fourth Proportional to 2,681.90, 4,025.55 and 1,296.35

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Solution

The fourth proportional to 2,681.90, 4,025.55 and 1,296.35 is: 1,945.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.90 : 4,025.55 = 1,296.35 : x
  2. Step 2: Convert to fraction form
    2,681.90/4,025.55 = 1,296.35/x
  3. Step 3: Cross multiply
    2,681.90x = 4,025.55 × 1,296.35
  4. Step 4: Simplify right side
    2,681.90x = 5,218,521.74
  5. Step 5: Solve for x
    x = 5,218,521.74/2,681.90
  6. Step 6: Final answer
    x = 1,945.83

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1.5x scale

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.