Home / 7,943.22-10,961.28-4,406.40

Finding the Fourth Proportional to 7,943.22, 10,961.28 and 4,406.40

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Solution

The fourth proportional to 7,943.22, 10,961.28 and 4,406.40 is: 6,080.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.22 : 10,961.28 = 4,406.40 : x
  2. Step 2: Convert to fraction form
    7,943.22/10,961.28 = 4,406.40/x
  3. Step 3: Cross multiply
    7,943.22x = 10,961.28 × 4,406.40
  4. Step 4: Simplify right side
    7,943.22x = 48,299,784.19
  5. Step 5: Solve for x
    x = 48,299,784.19/7,943.22
  6. Step 6: Final answer
    x = 6,080.63

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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.