Home / 1,687.35-2,328.93-1,096.86

Finding the Fourth Proportional to 1,687.35, 2,328.93 and 1,096.86

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Solution

The fourth proportional to 1,687.35, 2,328.93 and 1,096.86 is: 1,513.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687.35 : 2,328.93 = 1,096.86 : x
  2. Step 2: Convert to fraction form
    1,687.35/2,328.93 = 1,096.86/x
  3. Step 3: Cross multiply
    1,687.35x = 2,328.93 × 1,096.86
  4. Step 4: Simplify right side
    1,687.35x = 2,554,510.16
  5. Step 5: Solve for x
    x = 2,554,510.16/1,687.35
  6. Step 6: Final answer
    x = 1,513.92

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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.