Home / 2,173.86-3,001.08-1,335.78

Finding the Fourth Proportional to 2,173.86, 3,001.08 and 1,335.78

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Solution

The fourth proportional to 2,173.86, 3,001.08 and 1,335.78 is: 1,844.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.86 : 3,001.08 = 1,335.78 : x
  2. Step 2: Convert to fraction form
    2,173.86/3,001.08 = 1,335.78/x
  3. Step 3: Cross multiply
    2,173.86x = 3,001.08 × 1,335.78
  4. Step 4: Simplify right side
    2,173.86x = 4,008,782.64
  5. Step 5: Solve for x
    x = 4,008,782.64/2,173.86
  6. Step 6: Final answer
    x = 1,844.09

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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.