Home / 3,018.12-4,159.08-2,177.34

Finding the Fourth Proportional to 3,018.12, 4,159.08 and 2,177.34

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Solution

The fourth proportional to 3,018.12, 4,159.08 and 2,177.34 is: 3,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.12 : 4,159.08 = 2,177.34 : x
  2. Step 2: Convert to fraction form
    3,018.12/4,159.08 = 2,177.34/x
  3. Step 3: Cross multiply
    3,018.12x = 4,159.08 × 2,177.34
  4. Step 4: Simplify right side
    3,018.12x = 9,055,731.25
  5. Step 5: Solve for x
    x = 9,055,731.25/3,018.12
  6. Step 6: Final answer
    x = 3,000.45

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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.