Home / 4,258.21-6,388.40-1,625.71

Finding the Fourth Proportional to 4,258.21, 6,388.40 and 1,625.71

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Solution

The fourth proportional to 4,258.21, 6,388.40 and 1,625.71 is: 2,438.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,258.21 : 6,388.40 = 1,625.71 : x
  2. Step 2: Convert to fraction form
    4,258.21/6,388.40 = 1,625.71/x
  3. Step 3: Cross multiply
    4,258.21x = 6,388.40 × 1,625.71
  4. Step 4: Simplify right side
    4,258.21x = 10,385,685.76
  5. Step 5: Solve for x
    x = 10,385,685.76/4,258.21
  6. Step 6: Final answer
    x = 2,438.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.