Home / 7,838.61-11,761.35-2,907.18

Finding the Fourth Proportional to 7,838.61, 11,761.35 and 2,907.18

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Solution

The fourth proportional to 7,838.61, 11,761.35 and 2,907.18 is: 4,362.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838.61 : 11,761.35 = 2,907.18 : x
  2. Step 2: Convert to fraction form
    7,838.61/11,761.35 = 2,907.18/x
  3. Step 3: Cross multiply
    7,838.61x = 11,761.35 × 2,907.18
  4. Step 4: Simplify right side
    7,838.61x = 34,192,361.49
  5. Step 5: Solve for x
    x = 34,192,361.49/7,838.61
  6. Step 6: Final answer
    x = 4,362.04

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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.