Home / 5,284.08-7,931.04-2,688.96

Finding the Fourth Proportional to 5,284.08, 7,931.04 and 2,688.96

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Solution

The fourth proportional to 5,284.08, 7,931.04 and 2,688.96 is: 4,035.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284.08 : 7,931.04 = 2,688.96 : x
  2. Step 2: Convert to fraction form
    5,284.08/7,931.04 = 2,688.96/x
  3. Step 3: Cross multiply
    5,284.08x = 7,931.04 × 2,688.96
  4. Step 4: Simplify right side
    5,284.08x = 21,326,249.32
  5. Step 5: Solve for x
    x = 21,326,249.32/5,284.08
  6. Step 6: Final answer
    x = 4,035.94

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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.