Home / 5,631.31-8,437.69-1,931.51

Finding the Fourth Proportional to 5,631.31, 8,437.69 and 1,931.51

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Solution

The fourth proportional to 5,631.31, 8,437.69 and 1,931.51 is: 2,894.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.31 : 8,437.69 = 1,931.51 : x
  2. Step 2: Convert to fraction form
    5,631.31/8,437.69 = 1,931.51/x
  3. Step 3: Cross multiply
    5,631.31x = 8,437.69 × 1,931.51
  4. Step 4: Simplify right side
    5,631.31x = 16,297,511.55
  5. Step 5: Solve for x
    x = 16,297,511.55/5,631.31
  6. Step 6: Final answer
    x = 2,894.09

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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.