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Finding the Fourth Proportional to 7,902.60, 10,908.90 and 4,759.08

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Solution

The fourth proportional to 7,902.60, 10,908.90 and 4,759.08 is: 6,569.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902.60 : 10,908.90 = 4,759.08 : x
  2. Step 2: Convert to fraction form
    7,902.60/10,908.90 = 4,759.08/x
  3. Step 3: Cross multiply
    7,902.60x = 10,908.90 × 4,759.08
  4. Step 4: Simplify right side
    7,902.60x = 51,916,327.81
  5. Step 5: Solve for x
    x = 51,916,327.81/7,902.60
  6. Step 6: Final answer
    x = 6,569.52

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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.