Home / 5,172.62-7,787.18-3,539.45

Finding the Fourth Proportional to 5,172.62, 7,787.18 and 3,539.45

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Solution

The fourth proportional to 5,172.62, 7,787.18 and 3,539.45 is: 5,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.62 : 7,787.18 = 3,539.45 : x
  2. Step 2: Convert to fraction form
    5,172.62/7,787.18 = 3,539.45/x
  3. Step 3: Cross multiply
    5,172.62x = 7,787.18 × 3,539.45
  4. Step 4: Simplify right side
    5,172.62x = 27,562,277.62
  5. Step 5: Solve for x
    x = 27,562,277.62/5,172.62
  6. Step 6: Final answer
    x = 5,328.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.