Home / 1,529.68-2,108.95-1,103.95

Finding the Fourth Proportional to 1,529.68, 2,108.95 and 1,103.95

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Solution

The fourth proportional to 1,529.68, 2,108.95 and 1,103.95 is: 1,522.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.68 : 2,108.95 = 1,103.95 : x
  2. Step 2: Convert to fraction form
    1,529.68/2,108.95 = 1,103.95/x
  3. Step 3: Cross multiply
    1,529.68x = 2,108.95 × 1,103.95
  4. Step 4: Simplify right side
    1,529.68x = 2,328,179.37
  5. Step 5: Solve for x
    x = 2,328,179.37/1,529.68
  6. Step 6: Final answer
    x = 1,522.00

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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.