Home / 5,552.71-7,652.14-3,978.07

Finding the Fourth Proportional to 5,552.71, 7,652.14 and 3,978.07

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Solution

The fourth proportional to 5,552.71, 7,652.14 and 3,978.07 is: 5,482.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,552.71 : 7,652.14 = 3,978.07 : x
  2. Step 2: Convert to fraction form
    5,552.71/7,652.14 = 3,978.07/x
  3. Step 3: Cross multiply
    5,552.71x = 7,652.14 × 3,978.07
  4. Step 4: Simplify right side
    5,552.71x = 30,440,719.49
  5. Step 5: Solve for x
    x = 30,440,719.49/5,552.71
  6. Step 6: Final answer
    x = 5,482.14

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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.