Home / 2,126.02-2,933.92-1,329.78

Finding the Fourth Proportional to 2,126.02, 2,933.92 and 1,329.78

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Solution

The fourth proportional to 2,126.02, 2,933.92 and 1,329.78 is: 1,835.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.02 : 2,933.92 = 1,329.78 : x
  2. Step 2: Convert to fraction form
    2,126.02/2,933.92 = 1,329.78/x
  3. Step 3: Cross multiply
    2,126.02x = 2,933.92 × 1,329.78
  4. Step 4: Simplify right side
    2,126.02x = 3,901,468.14
  5. Step 5: Solve for x
    x = 3,901,468.14/2,126.02
  6. Step 6: Final answer
    x = 1,835.10

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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.