Home / 2,259.40-3,386.40-1,163.20

Finding the Fourth Proportional to 2,259.40, 3,386.40 and 1,163.20

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Solution

The fourth proportional to 2,259.40, 3,386.40 and 1,163.20 is: 1,743.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.40 : 3,386.40 = 1,163.20 : x
  2. Step 2: Convert to fraction form
    2,259.40/3,386.40 = 1,163.20/x
  3. Step 3: Cross multiply
    2,259.40x = 3,386.40 × 1,163.20
  4. Step 4: Simplify right side
    2,259.40x = 3,939,060.48
  5. Step 5: Solve for x
    x = 3,939,060.48/2,259.40
  6. Step 6: Final answer
    x = 1,743.41

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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.