Home / 1,291.48-1,933.50-1,200.35

Finding the Fourth Proportional to 1,291.48, 1,933.50 and 1,200.35

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Solution

The fourth proportional to 1,291.48, 1,933.50 and 1,200.35 is: 1,797.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291.48 : 1,933.50 = 1,200.35 : x
  2. Step 2: Convert to fraction form
    1,291.48/1,933.50 = 1,200.35/x
  3. Step 3: Cross multiply
    1,291.48x = 1,933.50 × 1,200.35
  4. Step 4: Simplify right side
    1,291.48x = 2,320,886.06
  5. Step 5: Solve for x
    x = 2,320,886.06/1,291.48
  6. Step 6: Final answer
    x = 1,797.08

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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.