Home / 3,943.32-5,909.64-2,188.24

Finding the Fourth Proportional to 3,943.32, 5,909.64 and 2,188.24

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Solution

The fourth proportional to 3,943.32, 5,909.64 and 2,188.24 is: 3,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.32 : 5,909.64 = 2,188.24 : x
  2. Step 2: Convert to fraction form
    3,943.32/5,909.64 = 2,188.24/x
  3. Step 3: Cross multiply
    3,943.32x = 5,909.64 × 2,188.24
  4. Step 4: Simplify right side
    3,943.32x = 12,931,710.63
  5. Step 5: Solve for x
    x = 12,931,710.63/3,943.32
  6. Step 6: Final answer
    x = 3,279.40

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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.