Home / 5,426.72-8,140.09-1,963.16

Finding the Fourth Proportional to 5,426.72, 8,140.09 and 1,963.16

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Solution

The fourth proportional to 5,426.72, 8,140.09 and 1,963.16 is: 2,944.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.72 : 8,140.09 = 1,963.16 : x
  2. Step 2: Convert to fraction form
    5,426.72/8,140.09 = 1,963.16/x
  3. Step 3: Cross multiply
    5,426.72x = 8,140.09 × 1,963.16
  4. Step 4: Simplify right side
    5,426.72x = 15,980,299.08
  5. Step 5: Solve for x
    x = 15,980,299.08/5,426.72
  6. Step 6: Final answer
    x = 2,944.74

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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.