Home / 2,012.16-2,777.04-1,172.90

Finding the Fourth Proportional to 2,012.16, 2,777.04 and 1,172.90

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Solution

The fourth proportional to 2,012.16, 2,777.04 and 1,172.90 is: 1,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.16 : 2,777.04 = 1,172.90 : x
  2. Step 2: Convert to fraction form
    2,012.16/2,777.04 = 1,172.90/x
  3. Step 3: Cross multiply
    2,012.16x = 2,777.04 × 1,172.90
  4. Step 4: Simplify right side
    2,012.16x = 3,257,184.35
  5. Step 5: Solve for x
    x = 3,257,184.35/2,012.16
  6. Step 6: Final answer
    x = 1,618.75

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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.