Home / 6,439.24-8,886.18-3,645.28

Finding the Fourth Proportional to 6,439.24, 8,886.18 and 3,645.28

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Solution

The fourth proportional to 6,439.24, 8,886.18 and 3,645.28 is: 5,030.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.24 : 8,886.18 = 3,645.28 : x
  2. Step 2: Convert to fraction form
    6,439.24/8,886.18 = 3,645.28/x
  3. Step 3: Cross multiply
    6,439.24x = 8,886.18 × 3,645.28
  4. Step 4: Simplify right side
    6,439.24x = 32,392,614.23
  5. Step 5: Solve for x
    x = 32,392,614.23/6,439.24
  6. Step 6: Final answer
    x = 5,030.50

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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.