Home / 6,919.32-10,380.28-2,970.56

Finding the Fourth Proportional to 6,919.32, 10,380.28 and 2,970.56

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Solution

The fourth proportional to 6,919.32, 10,380.28 and 2,970.56 is: 4,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.32 : 10,380.28 = 2,970.56 : x
  2. Step 2: Convert to fraction form
    6,919.32/10,380.28 = 2,970.56/x
  3. Step 3: Cross multiply
    6,919.32x = 10,380.28 × 2,970.56
  4. Step 4: Simplify right side
    6,919.32x = 30,835,244.56
  5. Step 5: Solve for x
    x = 30,835,244.56/6,919.32
  6. Step 6: Final answer
    x = 4,456.40

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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.