Home / 5,283.82-7,920.06-2,688.58

Finding the Fourth Proportional to 5,283.82, 7,920.06 and 2,688.58

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Solution

The fourth proportional to 5,283.82, 7,920.06 and 2,688.58 is: 4,029.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.82 : 7,920.06 = 2,688.58 : x
  2. Step 2: Convert to fraction form
    5,283.82/7,920.06 = 2,688.58/x
  3. Step 3: Cross multiply
    5,283.82x = 7,920.06 × 2,688.58
  4. Step 4: Simplify right side
    5,283.82x = 21,293,714.91
  5. Step 5: Solve for x
    x = 21,293,714.91/5,283.82
  6. Step 6: Final answer
    x = 4,029.98

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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.