Home / 7,155.60-10,731.46-2,994.75

Finding the Fourth Proportional to 7,155.60, 10,731.46 and 2,994.75

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Solution

The fourth proportional to 7,155.60, 10,731.46 and 2,994.75 is: 4,491.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.60 : 10,731.46 = 2,994.75 : x
  2. Step 2: Convert to fraction form
    7,155.60/10,731.46 = 2,994.75/x
  3. Step 3: Cross multiply
    7,155.60x = 10,731.46 × 2,994.75
  4. Step 4: Simplify right side
    7,155.60x = 32,138,039.84
  5. Step 5: Solve for x
    x = 32,138,039.84/7,155.60
  6. Step 6: Final answer
    x = 4,491.31

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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.