Home / 3,567.20-5,342.70-2,109.20

Finding the Fourth Proportional to 3,567.20, 5,342.70 and 2,109.20

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Solution

The fourth proportional to 3,567.20, 5,342.70 and 2,109.20 is: 3,159.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,567.20 : 5,342.70 = 2,109.20 : x
  2. Step 2: Convert to fraction form
    3,567.20/5,342.70 = 2,109.20/x
  3. Step 3: Cross multiply
    3,567.20x = 5,342.70 × 2,109.20
  4. Step 4: Simplify right side
    3,567.20x = 11,268,822.84
  5. Step 5: Solve for x
    x = 11,268,822.84/3,567.20
  6. Step 6: Final answer
    x = 3,159.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.