Home / 5,156.39-7,734.57-1,869.47

Finding the Fourth Proportional to 5,156.39, 7,734.57 and 1,869.47

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Solution

The fourth proportional to 5,156.39, 7,734.57 and 1,869.47 is: 2,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.39 : 7,734.57 = 1,869.47 : x
  2. Step 2: Convert to fraction form
    5,156.39/7,734.57 = 1,869.47/x
  3. Step 3: Cross multiply
    5,156.39x = 7,734.57 × 1,869.47
  4. Step 4: Simplify right side
    5,156.39x = 14,459,546.58
  5. Step 5: Solve for x
    x = 14,459,546.58/5,156.39
  6. Step 6: Final answer
    x = 2,804.20

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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.