Home / 1,529.10-2,108.28-1,292.62

Finding the Fourth Proportional to 1,529.10, 2,108.28 and 1,292.62

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Solution

The fourth proportional to 1,529.10, 2,108.28 and 1,292.62 is: 1,782.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.10 : 2,108.28 = 1,292.62 : x
  2. Step 2: Convert to fraction form
    1,529.10/2,108.28 = 1,292.62/x
  3. Step 3: Cross multiply
    1,529.10x = 2,108.28 × 1,292.62
  4. Step 4: Simplify right side
    1,529.10x = 2,725,204.89
  5. Step 5: Solve for x
    x = 2,725,204.89/1,529.10
  6. Step 6: Final answer
    x = 1,782.23

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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.