Home / 2,921.11-4,382.24-947.23

Finding the Fourth Proportional to 2,921.11, 4,382.24 and 947.23

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Solution

The fourth proportional to 2,921.11, 4,382.24 and 947.23 is: 1,421.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.11 : 4,382.24 = 947.23 : x
  2. Step 2: Convert to fraction form
    2,921.11/4,382.24 = 947.23/x
  3. Step 3: Cross multiply
    2,921.11x = 4,382.24 × 947.23
  4. Step 4: Simplify right side
    2,921.11x = 4,150,973.50
  5. Step 5: Solve for x
    x = 4,150,973.50/2,921.11
  6. Step 6: Final answer
    x = 1,421.03

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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.