Home / 6,427.58-8,869.02-3,908.34

Finding the Fourth Proportional to 6,427.58, 8,869.02 and 3,908.34

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Solution

The fourth proportional to 6,427.58, 8,869.02 and 3,908.34 is: 5,392.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,427.58 : 8,869.02 = 3,908.34 : x
  2. Step 2: Convert to fraction form
    6,427.58/8,869.02 = 3,908.34/x
  3. Step 3: Cross multiply
    6,427.58x = 8,869.02 × 3,908.34
  4. Step 4: Simplify right side
    6,427.58x = 34,663,145.63
  5. Step 5: Solve for x
    x = 34,663,145.63/6,427.58
  6. Step 6: Final answer
    x = 5,392.88

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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.