Home / 3,143.64-4,332.78-2,356.32

Finding the Fourth Proportional to 3,143.64, 4,332.78 and 2,356.32

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Solution

The fourth proportional to 3,143.64, 4,332.78 and 2,356.32 is: 3,247.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.64 : 4,332.78 = 2,356.32 : x
  2. Step 2: Convert to fraction form
    3,143.64/4,332.78 = 2,356.32/x
  3. Step 3: Cross multiply
    3,143.64x = 4,332.78 × 2,356.32
  4. Step 4: Simplify right side
    3,143.64x = 10,209,416.17
  5. Step 5: Solve for x
    x = 10,209,416.17/3,143.64
  6. Step 6: Final answer
    x = 3,247.64

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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.