Home / 6,619.31-9,931.90-2,458.34

Finding the Fourth Proportional to 6,619.31, 9,931.90 and 2,458.34

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Solution

The fourth proportional to 6,619.31, 9,931.90 and 2,458.34 is: 3,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.31 : 9,931.90 = 2,458.34 : x
  2. Step 2: Convert to fraction form
    6,619.31/9,931.90 = 2,458.34/x
  3. Step 3: Cross multiply
    6,619.31x = 9,931.90 × 2,458.34
  4. Step 4: Simplify right side
    6,619.31x = 24,415,987.05
  5. Step 5: Solve for x
    x = 24,415,987.05/6,619.31
  6. Step 6: Final answer
    x = 3,688.60

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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.