Home / 4,931.15-7,400.36-3,968.87

Finding the Fourth Proportional to 4,931.15, 7,400.36 and 3,968.87

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Solution

The fourth proportional to 4,931.15, 7,400.36 and 3,968.87 is: 5,956.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.15 : 7,400.36 = 3,968.87 : x
  2. Step 2: Convert to fraction form
    4,931.15/7,400.36 = 3,968.87/x
  3. Step 3: Cross multiply
    4,931.15x = 7,400.36 × 3,968.87
  4. Step 4: Simplify right side
    4,931.15x = 29,371,039.71
  5. Step 5: Solve for x
    x = 29,371,039.71/4,931.15
  6. Step 6: Final answer
    x = 5,956.23

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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.