Home / 6,438.02-8,885.58-3,643.52

Finding the Fourth Proportional to 6,438.02, 8,885.58 and 3,643.52

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Solution

The fourth proportional to 6,438.02, 8,885.58 and 3,643.52 is: 5,028.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438.02 : 8,885.58 = 3,643.52 : x
  2. Step 2: Convert to fraction form
    6,438.02/8,885.58 = 3,643.52/x
  3. Step 3: Cross multiply
    6,438.02x = 8,885.58 × 3,643.52
  4. Step 4: Simplify right side
    6,438.02x = 32,374,788.44
  5. Step 5: Solve for x
    x = 32,374,788.44/6,438.02
  6. Step 6: Final answer
    x = 5,028.69

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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.