Home / 1,929.66-2,662.24-1,182.81

Finding the Fourth Proportional to 1,929.66, 2,662.24 and 1,182.81

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Solution

The fourth proportional to 1,929.66, 2,662.24 and 1,182.81 is: 1,631.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.66 : 2,662.24 = 1,182.81 : x
  2. Step 2: Convert to fraction form
    1,929.66/2,662.24 = 1,182.81/x
  3. Step 3: Cross multiply
    1,929.66x = 2,662.24 × 1,182.81
  4. Step 4: Simplify right side
    1,929.66x = 3,148,929.18
  5. Step 5: Solve for x
    x = 3,148,929.18/1,929.66
  6. Step 6: Final answer
    x = 1,631.86

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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.