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Finding the Fourth Proportional to 2,125.44, 2,933.12 and 1,339.84

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Solution

The fourth proportional to 2,125.44, 2,933.12 and 1,339.84 is: 1,848.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.44 : 2,933.12 = 1,339.84 : x
  2. Step 2: Convert to fraction form
    2,125.44/2,933.12 = 1,339.84/x
  3. Step 3: Cross multiply
    2,125.44x = 2,933.12 × 1,339.84
  4. Step 4: Simplify right side
    2,125.44x = 3,929,911.50
  5. Step 5: Solve for x
    x = 3,929,911.50/2,125.44
  6. Step 6: Final answer
    x = 1,848.99

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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.