Home / 4,356.32-6,534.72-1,278.56

Finding the Fourth Proportional to 4,356.32, 6,534.72 and 1,278.56

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Solution

The fourth proportional to 4,356.32, 6,534.72 and 1,278.56 is: 1,917.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,356.32 : 6,534.72 = 1,278.56 : x
  2. Step 2: Convert to fraction form
    4,356.32/6,534.72 = 1,278.56/x
  3. Step 3: Cross multiply
    4,356.32x = 6,534.72 × 1,278.56
  4. Step 4: Simplify right side
    4,356.32x = 8,355,031.60
  5. Step 5: Solve for x
    x = 8,355,031.60/4,356.32
  6. Step 6: Final answer
    x = 1,917.91

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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.