Home / 3,315.65-4,573.79-2,785.10

Finding the Fourth Proportional to 3,315.65, 4,573.79 and 2,785.10

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Solution

The fourth proportional to 3,315.65, 4,573.79 and 2,785.10 is: 3,841.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.65 : 4,573.79 = 2,785.10 : x
  2. Step 2: Convert to fraction form
    3,315.65/4,573.79 = 2,785.10/x
  3. Step 3: Cross multiply
    3,315.65x = 4,573.79 × 2,785.10
  4. Step 4: Simplify right side
    3,315.65x = 12,738,425.73
  5. Step 5: Solve for x
    x = 12,738,425.73/3,315.65
  6. Step 6: Final answer
    x = 3,841.91

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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.