Home / 5,376.64-7,419.52-2,986.77

Finding the Fourth Proportional to 5,376.64, 7,419.52 and 2,986.77

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Solution

The fourth proportional to 5,376.64, 7,419.52 and 2,986.77 is: 4,121.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.64 : 7,419.52 = 2,986.77 : x
  2. Step 2: Convert to fraction form
    5,376.64/7,419.52 = 2,986.77/x
  3. Step 3: Cross multiply
    5,376.64x = 7,419.52 × 2,986.77
  4. Step 4: Simplify right side
    5,376.64x = 22,160,392.28
  5. Step 5: Solve for x
    x = 22,160,392.28/5,376.64
  6. Step 6: Final answer
    x = 4,121.61

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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.