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Finding the Fourth Proportional to 6,367.78, 8,787.56 and 3,573.28

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Solution

The fourth proportional to 6,367.78, 8,787.56 and 3,573.28 is: 4,931.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,367.78 : 8,787.56 = 3,573.28 : x
  2. Step 2: Convert to fraction form
    6,367.78/8,787.56 = 3,573.28/x
  3. Step 3: Cross multiply
    6,367.78x = 8,787.56 × 3,573.28
  4. Step 4: Simplify right side
    6,367.78x = 31,400,405.51
  5. Step 5: Solve for x
    x = 31,400,405.51/6,367.78
  6. Step 6: Final answer
    x = 4,931.14

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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.