Home / 2,785.40-3,843.68-1,526.23

Finding the Fourth Proportional to 2,785.40, 3,843.68 and 1,526.23

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Solution

The fourth proportional to 2,785.40, 3,843.68 and 1,526.23 is: 2,106.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.40 : 3,843.68 = 1,526.23 : x
  2. Step 2: Convert to fraction form
    2,785.40/3,843.68 = 1,526.23/x
  3. Step 3: Cross multiply
    2,785.40x = 3,843.68 × 1,526.23
  4. Step 4: Simplify right side
    2,785.40x = 5,866,339.73
  5. Step 5: Solve for x
    x = 5,866,339.73/2,785.40
  6. Step 6: Final answer
    x = 2,106.10

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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.