Home / 2,857.14-3,937.59-2,356.74

Finding the Fourth Proportional to 2,857.14, 3,937.59 and 2,356.74

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Solution

The fourth proportional to 2,857.14, 3,937.59 and 2,356.74 is: 3,247.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.14 : 3,937.59 = 2,356.74 : x
  2. Step 2: Convert to fraction form
    2,857.14/3,937.59 = 2,356.74/x
  3. Step 3: Cross multiply
    2,857.14x = 3,937.59 × 2,356.74
  4. Step 4: Simplify right side
    2,857.14x = 9,279,875.86
  5. Step 5: Solve for x
    x = 9,279,875.86/2,857.14
  6. Step 6: Final answer
    x = 3,247.96

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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.