Home / 5,278.23-7,283.43-3,688.38

Finding the Fourth Proportional to 5,278.23, 7,283.43 and 3,688.38

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Solution

The fourth proportional to 5,278.23, 7,283.43 and 3,688.38 is: 5,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.23 : 7,283.43 = 3,688.38 : x
  2. Step 2: Convert to fraction form
    5,278.23/7,283.43 = 3,688.38/x
  3. Step 3: Cross multiply
    5,278.23x = 7,283.43 × 3,688.38
  4. Step 4: Simplify right side
    5,278.23x = 26,864,057.54
  5. Step 5: Solve for x
    x = 26,864,057.54/5,278.23
  6. Step 6: Final answer
    x = 5,089.60

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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.