Home / 2,655.60-3,979.26-1,011.26

Finding the Fourth Proportional to 2,655.60, 3,979.26 and 1,011.26

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Solution

The fourth proportional to 2,655.60, 3,979.26 and 1,011.26 is: 1,515.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.60 : 3,979.26 = 1,011.26 : x
  2. Step 2: Convert to fraction form
    2,655.60/3,979.26 = 1,011.26/x
  3. Step 3: Cross multiply
    2,655.60x = 3,979.26 × 1,011.26
  4. Step 4: Simplify right side
    2,655.60x = 4,024,066.47
  5. Step 5: Solve for x
    x = 4,024,066.47/2,655.60
  6. Step 6: Final answer
    x = 1,515.31

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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.