Home / 2,687.04-4,030.65-2,170.08

Finding the Fourth Proportional to 2,687.04, 4,030.65 and 2,170.08

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Solution

The fourth proportional to 2,687.04, 4,030.65 and 2,170.08 is: 3,255.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.04 : 4,030.65 = 2,170.08 : x
  2. Step 2: Convert to fraction form
    2,687.04/4,030.65 = 2,170.08/x
  3. Step 3: Cross multiply
    2,687.04x = 4,030.65 × 2,170.08
  4. Step 4: Simplify right side
    2,687.04x = 8,746,832.95
  5. Step 5: Solve for x
    x = 8,746,832.95/2,687.04
  6. Step 6: Final answer
    x = 3,255.19

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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.