Home / 6,439.68-8,886.51-3,606.48

Finding the Fourth Proportional to 6,439.68, 8,886.51 and 3,606.48

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Solution

The fourth proportional to 6,439.68, 8,886.51 and 3,606.48 is: 4,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.68 : 8,886.51 = 3,606.48 : x
  2. Step 2: Convert to fraction form
    6,439.68/8,886.51 = 3,606.48/x
  3. Step 3: Cross multiply
    6,439.68x = 8,886.51 × 3,606.48
  4. Step 4: Simplify right side
    6,439.68x = 32,049,020.58
  5. Step 5: Solve for x
    x = 32,049,020.58/6,439.68
  6. Step 6: Final answer
    x = 4,976.80

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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.