Home / 2,186.06-3,261.72-2,031.20

Finding the Fourth Proportional to 2,186.06, 3,261.72 and 2,031.20

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Solution

The fourth proportional to 2,186.06, 3,261.72 and 2,031.20 is: 3,030.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.06 : 3,261.72 = 2,031.20 : x
  2. Step 2: Convert to fraction form
    2,186.06/3,261.72 = 2,031.20/x
  3. Step 3: Cross multiply
    2,186.06x = 3,261.72 × 2,031.20
  4. Step 4: Simplify right side
    2,186.06x = 6,625,205.66
  5. Step 5: Solve for x
    x = 6,625,205.66/2,186.06
  6. Step 6: Final answer
    x = 3,030.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.