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Finding the Fourth Proportional to 5,283.31, 7,929.07 and 2,653.45

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Solution

The fourth proportional to 5,283.31, 7,929.07 and 2,653.45 is: 3,982.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.31 : 7,929.07 = 2,653.45 : x
  2. Step 2: Convert to fraction form
    5,283.31/7,929.07 = 2,653.45/x
  3. Step 3: Cross multiply
    5,283.31x = 7,929.07 × 2,653.45
  4. Step 4: Simplify right side
    5,283.31x = 21,039,390.79
  5. Step 5: Solve for x
    x = 21,039,390.79/5,283.31
  6. Step 6: Final answer
    x = 3,982.24

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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.