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Finding the Fourth Proportional to 7,454.50, 11,182.13 and 1,907.89

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Solution

The fourth proportional to 7,454.50, 11,182.13 and 1,907.89 is: 2,861.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,454.50 : 11,182.13 = 1,907.89 : x
  2. Step 2: Convert to fraction form
    7,454.50/11,182.13 = 1,907.89/x
  3. Step 3: Cross multiply
    7,454.50x = 11,182.13 × 1,907.89
  4. Step 4: Simplify right side
    7,454.50x = 21,334,274.01
  5. Step 5: Solve for x
    x = 21,334,274.01/7,454.50
  6. Step 6: Final answer
    x = 2,861.93

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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.