Home / 2,878.27-4,320.37-1,785.23

Finding the Fourth Proportional to 2,878.27, 4,320.37 and 1,785.23

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Solution

The fourth proportional to 2,878.27, 4,320.37 and 1,785.23 is: 2,679.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.27 : 4,320.37 = 1,785.23 : x
  2. Step 2: Convert to fraction form
    2,878.27/4,320.37 = 1,785.23/x
  3. Step 3: Cross multiply
    2,878.27x = 4,320.37 × 1,785.23
  4. Step 4: Simplify right side
    2,878.27x = 7,712,854.14
  5. Step 5: Solve for x
    x = 7,712,854.14/2,878.27
  6. Step 6: Final answer
    x = 2,679.68

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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.