Home / 3,340.95-5,011.87-1,260.33

Finding the Fourth Proportional to 3,340.95, 5,011.87 and 1,260.33

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Solution

The fourth proportional to 3,340.95, 5,011.87 and 1,260.33 is: 1,890.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.95 : 5,011.87 = 1,260.33 : x
  2. Step 2: Convert to fraction form
    3,340.95/5,011.87 = 1,260.33/x
  3. Step 3: Cross multiply
    3,340.95x = 5,011.87 × 1,260.33
  4. Step 4: Simplify right side
    3,340.95x = 6,316,610.12
  5. Step 5: Solve for x
    x = 6,316,610.12/3,340.95
  6. Step 6: Final answer
    x = 1,890.66

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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.