Home / 2,778.19-4,167.30-1,623.13

Finding the Fourth Proportional to 2,778.19, 4,167.30 and 1,623.13

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Solution

The fourth proportional to 2,778.19, 4,167.30 and 1,623.13 is: 2,434.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.19 : 4,167.30 = 1,623.13 : x
  2. Step 2: Convert to fraction form
    2,778.19/4,167.30 = 1,623.13/x
  3. Step 3: Cross multiply
    2,778.19x = 4,167.30 × 1,623.13
  4. Step 4: Simplify right side
    2,778.19x = 6,764,069.65
  5. Step 5: Solve for x
    x = 6,764,069.65/2,778.19
  6. Step 6: Final answer
    x = 2,434.70

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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.