Home / 5,143.22-7,097.61-2,905.08

Finding the Fourth Proportional to 5,143.22, 7,097.61 and 2,905.08

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Solution

The fourth proportional to 5,143.22, 7,097.61 and 2,905.08 is: 4,008.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.22 : 7,097.61 = 2,905.08 : x
  2. Step 2: Convert to fraction form
    5,143.22/7,097.61 = 2,905.08/x
  3. Step 3: Cross multiply
    5,143.22x = 7,097.61 × 2,905.08
  4. Step 4: Simplify right side
    5,143.22x = 20,619,124.86
  5. Step 5: Solve for x
    x = 20,619,124.86/5,143.22
  6. Step 6: Final answer
    x = 4,008.99

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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.