Home / 6,438.16-8,884.32-3,643.52

Finding the Fourth Proportional to 6,438.16, 8,884.32 and 3,643.52

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Solution

The fourth proportional to 6,438.16, 8,884.32 and 3,643.52 is: 5,027.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.16 : 8,884.32 = 3,643.52 : x
  2. Step 2: Convert to fraction form
    6,438.16/8,884.32 = 3,643.52/x
  3. Step 3: Cross multiply
    6,438.16x = 8,884.32 × 3,643.52
  4. Step 4: Simplify right side
    6,438.16x = 32,370,197.61
  5. Step 5: Solve for x
    x = 32,370,197.61/6,438.16
  6. Step 6: Final answer
    x = 5,027.86

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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.