Home / 3,155.15-4,731.26-1,509.89

Finding the Fourth Proportional to 3,155.15, 4,731.26 and 1,509.89

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Solution

The fourth proportional to 3,155.15, 4,731.26 and 1,509.89 is: 2,264.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.15 : 4,731.26 = 1,509.89 : x
  2. Step 2: Convert to fraction form
    3,155.15/4,731.26 = 1,509.89/x
  3. Step 3: Cross multiply
    3,155.15x = 4,731.26 × 1,509.89
  4. Step 4: Simplify right side
    3,155.15x = 7,143,650.96
  5. Step 5: Solve for x
    x = 7,143,650.96/3,155.15
  6. Step 6: Final answer
    x = 2,264.13

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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.