Home / 2,315.42-3,192.49-1,607.87

Finding the Fourth Proportional to 2,315.42, 3,192.49 and 1,607.87

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Solution

The fourth proportional to 2,315.42, 3,192.49 and 1,607.87 is: 2,216.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.42 : 3,192.49 = 1,607.87 : x
  2. Step 2: Convert to fraction form
    2,315.42/3,192.49 = 1,607.87/x
  3. Step 3: Cross multiply
    2,315.42x = 3,192.49 × 1,607.87
  4. Step 4: Simplify right side
    2,315.42x = 5,133,108.90
  5. Step 5: Solve for x
    x = 5,133,108.90/2,315.42
  6. Step 6: Final answer
    x = 2,216.92

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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.