Home / 1,921.23-2,882.66-948.42

Finding the Fourth Proportional to 1,921.23, 2,882.66 and 948.42

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Solution

The fourth proportional to 1,921.23, 2,882.66 and 948.42 is: 1,423.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.23 : 2,882.66 = 948.42 : x
  2. Step 2: Convert to fraction form
    1,921.23/2,882.66 = 948.42/x
  3. Step 3: Cross multiply
    1,921.23x = 2,882.66 × 948.42
  4. Step 4: Simplify right side
    1,921.23x = 2,733,967.66
  5. Step 5: Solve for x
    x = 2,733,967.66/1,921.23
  6. Step 6: Final answer
    x = 1,423.03

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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.