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Finding the Fourth Proportional to 4,892.60, 7,338.81 and 1,970.84

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Solution

The fourth proportional to 4,892.60, 7,338.81 and 1,970.84 is: 2,956.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,892.60 : 7,338.81 = 1,970.84 : x
  2. Step 2: Convert to fraction form
    4,892.60/7,338.81 = 1,970.84/x
  3. Step 3: Cross multiply
    4,892.60x = 7,338.81 × 1,970.84
  4. Step 4: Simplify right side
    4,892.60x = 14,463,646.04
  5. Step 5: Solve for x
    x = 14,463,646.04/4,892.60
  6. Step 6: Final answer
    x = 2,956.23

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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.