Home / 3,663.13-5,055.51-2,405.20

Finding the Fourth Proportional to 3,663.13, 5,055.51 and 2,405.20

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Solution

The fourth proportional to 3,663.13, 5,055.51 and 2,405.20 is: 3,319.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,663.13 : 5,055.51 = 2,405.20 : x
  2. Step 2: Convert to fraction form
    3,663.13/5,055.51 = 2,405.20/x
  3. Step 3: Cross multiply
    3,663.13x = 5,055.51 × 2,405.20
  4. Step 4: Simplify right side
    3,663.13x = 12,159,512.65
  5. Step 5: Solve for x
    x = 12,159,512.65/3,663.13
  6. Step 6: Final answer
    x = 3,319.43

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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.