Home / 1,929.79-2,663.58-1,184.05

Finding the Fourth Proportional to 1,929.79, 2,663.58 and 1,184.05

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Solution

The fourth proportional to 1,929.79, 2,663.58 and 1,184.05 is: 1,634.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.79 : 2,663.58 = 1,184.05 : x
  2. Step 2: Convert to fraction form
    1,929.79/2,663.58 = 1,184.05/x
  3. Step 3: Cross multiply
    1,929.79x = 2,663.58 × 1,184.05
  4. Step 4: Simplify right side
    1,929.79x = 3,153,811.90
  5. Step 5: Solve for x
    x = 3,153,811.90/1,929.79
  6. Step 6: Final answer
    x = 1,634.28

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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.