Home / 2,178.55-3,266.99-1,009.17

Finding the Fourth Proportional to 2,178.55, 3,266.99 and 1,009.17

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Solution

The fourth proportional to 2,178.55, 3,266.99 and 1,009.17 is: 1,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.55 : 3,266.99 = 1,009.17 : x
  2. Step 2: Convert to fraction form
    2,178.55/3,266.99 = 1,009.17/x
  3. Step 3: Cross multiply
    2,178.55x = 3,266.99 × 1,009.17
  4. Step 4: Simplify right side
    2,178.55x = 3,296,947.04
  5. Step 5: Solve for x
    x = 3,296,947.04/2,178.55
  6. Step 6: Final answer
    x = 1,513.37

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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.