Home / 2,259.77-3,122.45-1,958.70

Finding the Fourth Proportional to 2,259.77, 3,122.45 and 1,958.70

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Solution

The fourth proportional to 2,259.77, 3,122.45 and 1,958.70 is: 2,706.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.77 : 3,122.45 = 1,958.70 : x
  2. Step 2: Convert to fraction form
    2,259.77/3,122.45 = 1,958.70/x
  3. Step 3: Cross multiply
    2,259.77x = 3,122.45 × 1,958.70
  4. Step 4: Simplify right side
    2,259.77x = 6,115,933.02
  5. Step 5: Solve for x
    x = 6,115,933.02/2,259.77
  6. Step 6: Final answer
    x = 2,706.45

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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.