Home / 2,259.55-3,386.96-1,087.78

Finding the Fourth Proportional to 2,259.55, 3,386.96 and 1,087.78

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Solution

The fourth proportional to 2,259.55, 3,386.96 and 1,087.78 is: 1,630.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.55 : 3,386.96 = 1,087.78 : x
  2. Step 2: Convert to fraction form
    2,259.55/3,386.96 = 1,087.78/x
  3. Step 3: Cross multiply
    2,259.55x = 3,386.96 × 1,087.78
  4. Step 4: Simplify right side
    2,259.55x = 3,684,269.99
  5. Step 5: Solve for x
    x = 3,684,269.99/2,259.55
  6. Step 6: Final answer
    x = 1,630.54

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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.