Home / 3,144.64-4,339.54-1,818.32

Finding the Fourth Proportional to 3,144.64, 4,339.54 and 1,818.32

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Solution

The fourth proportional to 3,144.64, 4,339.54 and 1,818.32 is: 2,509.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.64 : 4,339.54 = 1,818.32 : x
  2. Step 2: Convert to fraction form
    3,144.64/4,339.54 = 1,818.32/x
  3. Step 3: Cross multiply
    3,144.64x = 4,339.54 × 1,818.32
  4. Step 4: Simplify right side
    3,144.64x = 7,890,672.37
  5. Step 5: Solve for x
    x = 7,890,672.37/3,144.64
  6. Step 6: Final answer
    x = 2,509.25

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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.