Home / 2,259.79-3,118.36-1,265.06

Finding the Fourth Proportional to 2,259.79, 3,118.36 and 1,265.06

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Solution

The fourth proportional to 2,259.79, 3,118.36 and 1,265.06 is: 1,745.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.79 : 3,118.36 = 1,265.06 : x
  2. Step 2: Convert to fraction form
    2,259.79/3,118.36 = 1,265.06/x
  3. Step 3: Cross multiply
    2,259.79x = 3,118.36 × 1,265.06
  4. Step 4: Simplify right side
    2,259.79x = 3,944,912.50
  5. Step 5: Solve for x
    x = 3,944,912.50/2,259.79
  6. Step 6: Final answer
    x = 1,745.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.