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Finding the Fourth Proportional to 1,653.18, 2,479.13 and 482.79

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Solution

The fourth proportional to 1,653.18, 2,479.13 and 482.79 is: 724.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653.18 : 2,479.13 = 482.79 : x
  2. Step 2: Convert to fraction form
    1,653.18/2,479.13 = 482.79/x
  3. Step 3: Cross multiply
    1,653.18x = 2,479.13 × 482.79
  4. Step 4: Simplify right side
    1,653.18x = 1,196,896.76
  5. Step 5: Solve for x
    x = 1,196,896.76/1,653.18
  6. Step 6: Final answer
    x = 724.00

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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.