Home / 1,817.46-2,509.04-1,228.79

Finding the Fourth Proportional to 1,817.46, 2,509.04 and 1,228.79

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Solution

The fourth proportional to 1,817.46, 2,509.04 and 1,228.79 is: 1,696.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.46 : 2,509.04 = 1,228.79 : x
  2. Step 2: Convert to fraction form
    1,817.46/2,509.04 = 1,228.79/x
  3. Step 3: Cross multiply
    1,817.46x = 2,509.04 × 1,228.79
  4. Step 4: Simplify right side
    1,817.46x = 3,083,092.61
  5. Step 5: Solve for x
    x = 3,083,092.61/1,817.46
  6. Step 6: Final answer
    x = 1,696.37

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1.5x scale

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.