Home / 1,924.31-2,881.32-1,227.20

Finding the Fourth Proportional to 1,924.31, 2,881.32 and 1,227.20

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Solution

The fourth proportional to 1,924.31, 2,881.32 and 1,227.20 is: 1,837.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.31 : 2,881.32 = 1,227.20 : x
  2. Step 2: Convert to fraction form
    1,924.31/2,881.32 = 1,227.20/x
  3. Step 3: Cross multiply
    1,924.31x = 2,881.32 × 1,227.20
  4. Step 4: Simplify right side
    1,924.31x = 3,535,955.90
  5. Step 5: Solve for x
    x = 3,535,955.90/1,924.31
  6. Step 6: Final answer
    x = 1,837.52

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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.