Home / 3,099.40-4,646.40-1,867.30

Finding the Fourth Proportional to 3,099.40, 4,646.40 and 1,867.30

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Solution

The fourth proportional to 3,099.40, 4,646.40 and 1,867.30 is: 2,799.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.40 : 4,646.40 = 1,867.30 : x
  2. Step 2: Convert to fraction form
    3,099.40/4,646.40 = 1,867.30/x
  3. Step 3: Cross multiply
    3,099.40x = 4,646.40 × 1,867.30
  4. Step 4: Simplify right side
    3,099.40x = 8,676,222.72
  5. Step 5: Solve for x
    x = 8,676,222.72/3,099.40
  6. Step 6: Final answer
    x = 2,799.32

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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.