Home / 2,886.34-4,328.07-938.30

Finding the Fourth Proportional to 2,886.34, 4,328.07 and 938.30

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Solution

The fourth proportional to 2,886.34, 4,328.07 and 938.30 is: 1,406.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.34 : 4,328.07 = 938.30 : x
  2. Step 2: Convert to fraction form
    2,886.34/4,328.07 = 938.30/x
  3. Step 3: Cross multiply
    2,886.34x = 4,328.07 × 938.30
  4. Step 4: Simplify right side
    2,886.34x = 4,061,028.08
  5. Step 5: Solve for x
    x = 4,061,028.08/2,886.34
  6. Step 6: Final answer
    x = 1,406.98

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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.