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Finding the Fourth Proportional to 7,902.87, 11,851.86 and 2,355.18

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Solution

The fourth proportional to 7,902.87, 11,851.86 and 2,355.18 is: 3,532.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902.87 : 11,851.86 = 2,355.18 : x
  2. Step 2: Convert to fraction form
    7,902.87/11,851.86 = 2,355.18/x
  3. Step 3: Cross multiply
    7,902.87x = 11,851.86 × 2,355.18
  4. Step 4: Simplify right side
    7,902.87x = 27,913,263.63
  5. Step 5: Solve for x
    x = 27,913,263.63/7,902.87
  6. Step 6: Final answer
    x = 3,532.04

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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.