Home / 3,678.11-5,486.10-3,124.07

Finding the Fourth Proportional to 3,678.11, 5,486.10 and 3,124.07

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Solution

The fourth proportional to 3,678.11, 5,486.10 and 3,124.07 is: 4,659.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.11 : 5,486.10 = 3,124.07 : x
  2. Step 2: Convert to fraction form
    3,678.11/5,486.10 = 3,124.07/x
  3. Step 3: Cross multiply
    3,678.11x = 5,486.10 × 3,124.07
  4. Step 4: Simplify right side
    3,678.11x = 17,138,968.21
  5. Step 5: Solve for x
    x = 17,138,968.21/3,678.11
  6. Step 6: Final answer
    x = 4,659.72

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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.