Home / 1,615.75-2,423.64-1,293.17

Finding the Fourth Proportional to 1,615.75, 2,423.64 and 1,293.17

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Solution

The fourth proportional to 1,615.75, 2,423.64 and 1,293.17 is: 1,939.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.75 : 2,423.64 = 1,293.17 : x
  2. Step 2: Convert to fraction form
    1,615.75/2,423.64 = 1,293.17/x
  3. Step 3: Cross multiply
    1,615.75x = 2,423.64 × 1,293.17
  4. Step 4: Simplify right side
    1,615.75x = 3,134,180.36
  5. Step 5: Solve for x
    x = 3,134,180.36/1,615.75
  6. Step 6: Final answer
    x = 1,939.77

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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.