Home / 2,125.50-2,933.36-1,181.38

Finding the Fourth Proportional to 2,125.50, 2,933.36 and 1,181.38

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Solution

The fourth proportional to 2,125.50, 2,933.36 and 1,181.38 is: 1,630.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.50 : 2,933.36 = 1,181.38 : x
  2. Step 2: Convert to fraction form
    2,125.50/2,933.36 = 1,181.38/x
  3. Step 3: Cross multiply
    2,125.50x = 2,933.36 × 1,181.38
  4. Step 4: Simplify right side
    2,125.50x = 3,465,412.84
  5. Step 5: Solve for x
    x = 3,465,412.84/2,125.50
  6. Step 6: Final answer
    x = 1,630.40

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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.