Home / 1,263.68-1,894.98-1,143.08

Finding the Fourth Proportional to 1,263.68, 1,894.98 and 1,143.08

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Solution

The fourth proportional to 1,263.68, 1,894.98 and 1,143.08 is: 1,714.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.68 : 1,894.98 = 1,143.08 : x
  2. Step 2: Convert to fraction form
    1,263.68/1,894.98 = 1,143.08/x
  3. Step 3: Cross multiply
    1,263.68x = 1,894.98 × 1,143.08
  4. Step 4: Simplify right side
    1,263.68x = 2,166,113.74
  5. Step 5: Solve for x
    x = 2,166,113.74/1,263.68
  6. Step 6: Final answer
    x = 1,714.13

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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.