Home / 3,663.74-5,055.80-2,070.20

Finding the Fourth Proportional to 3,663.74, 5,055.80 and 2,070.20

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Solution

The fourth proportional to 3,663.74, 5,055.80 and 2,070.20 is: 2,856.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,663.74 : 5,055.80 = 2,070.20 : x
  2. Step 2: Convert to fraction form
    3,663.74/5,055.80 = 2,070.20/x
  3. Step 3: Cross multiply
    3,663.74x = 5,055.80 × 2,070.20
  4. Step 4: Simplify right side
    3,663.74x = 10,466,481.53
  5. Step 5: Solve for x
    x = 10,466,481.53/3,663.74
  6. Step 6: Final answer
    x = 2,856.78

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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.