Home / 2,448.12-3,378.40-1,329.05

Finding the Fourth Proportional to 2,448.12, 3,378.40 and 1,329.05

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Solution

The fourth proportional to 2,448.12, 3,378.40 and 1,329.05 is: 1,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,448.12 : 3,378.40 = 1,329.05 : x
  2. Step 2: Convert to fraction form
    2,448.12/3,378.40 = 1,329.05/x
  3. Step 3: Cross multiply
    2,448.12x = 3,378.40 × 1,329.05
  4. Step 4: Simplify right side
    2,448.12x = 4,490,062.52
  5. Step 5: Solve for x
    x = 4,490,062.52/2,448.12
  6. Step 6: Final answer
    x = 1,834.09

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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.