Home / 4,931.00-7,392.34-2,155.56

Finding the Fourth Proportional to 4,931.00, 7,392.34 and 2,155.56

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Solution

The fourth proportional to 4,931.00, 7,392.34 and 2,155.56 is: 3,231.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.00 : 7,392.34 = 2,155.56 : x
  2. Step 2: Convert to fraction form
    4,931.00/7,392.34 = 2,155.56/x
  3. Step 3: Cross multiply
    4,931.00x = 7,392.34 × 2,155.56
  4. Step 4: Simplify right side
    4,931.00x = 15,934,642.90
  5. Step 5: Solve for x
    x = 15,934,642.90/4,931.00
  6. Step 6: Final answer
    x = 3,231.52

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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.