Home / 2,240.19-3,357.54-777.65

Finding the Fourth Proportional to 2,240.19, 3,357.54 and 777.65

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Solution

The fourth proportional to 2,240.19, 3,357.54 and 777.65 is: 1,165.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.19 : 3,357.54 = 777.65 : x
  2. Step 2: Convert to fraction form
    2,240.19/3,357.54 = 777.65/x
  3. Step 3: Cross multiply
    2,240.19x = 3,357.54 × 777.65
  4. Step 4: Simplify right side
    2,240.19x = 2,610,974.19
  5. Step 5: Solve for x
    x = 2,610,974.19/2,240.19
  6. Step 6: Final answer
    x = 1,165.51

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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.