Home / 2,307.15-3,183.84-1,312.48

Finding the Fourth Proportional to 2,307.15, 3,183.84 and 1,312.48

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Solution

The fourth proportional to 2,307.15, 3,183.84 and 1,312.48 is: 1,811.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,307.15 : 3,183.84 = 1,312.48 : x
  2. Step 2: Convert to fraction form
    2,307.15/3,183.84 = 1,312.48/x
  3. Step 3: Cross multiply
    2,307.15x = 3,183.84 × 1,312.48
  4. Step 4: Simplify right side
    2,307.15x = 4,178,726.32
  5. Step 5: Solve for x
    x = 4,178,726.32/2,307.15
  6. Step 6: Final answer
    x = 1,811.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.