Home / 3,618.03-4,995.12-2,777.12

Finding the Fourth Proportional to 3,618.03, 4,995.12 and 2,777.12

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Solution

The fourth proportional to 3,618.03, 4,995.12 and 2,777.12 is: 3,834.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.03 : 4,995.12 = 2,777.12 : x
  2. Step 2: Convert to fraction form
    3,618.03/4,995.12 = 2,777.12/x
  3. Step 3: Cross multiply
    3,618.03x = 4,995.12 × 2,777.12
  4. Step 4: Simplify right side
    3,618.03x = 13,872,036.20
  5. Step 5: Solve for x
    x = 13,872,036.20/3,618.03
  6. Step 6: Final answer
    x = 3,834.15

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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.