Home / 2,790.10-4,182.99-1,618.30

Finding the Fourth Proportional to 2,790.10, 4,182.99 and 1,618.30

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Solution

The fourth proportional to 2,790.10, 4,182.99 and 1,618.30 is: 2,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.10 : 4,182.99 = 1,618.30 : x
  2. Step 2: Convert to fraction form
    2,790.10/4,182.99 = 1,618.30/x
  3. Step 3: Cross multiply
    2,790.10x = 4,182.99 × 1,618.30
  4. Step 4: Simplify right side
    2,790.10x = 6,769,332.72
  5. Step 5: Solve for x
    x = 6,769,332.72/2,790.10
  6. Step 6: Final answer
    x = 2,426.20

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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.