Home / 3,144.51-4,339.52-1,818.63

Finding the Fourth Proportional to 3,144.51, 4,339.52 and 1,818.63

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Solution

The fourth proportional to 3,144.51, 4,339.52 and 1,818.63 is: 2,509.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.51 : 4,339.52 = 1,818.63 : x
  2. Step 2: Convert to fraction form
    3,144.51/4,339.52 = 1,818.63/x
  3. Step 3: Cross multiply
    3,144.51x = 4,339.52 × 1,818.63
  4. Step 4: Simplify right side
    3,144.51x = 7,891,972.16
  5. Step 5: Solve for x
    x = 7,891,972.16/3,144.51
  6. Step 6: Final answer
    x = 2,509.76

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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.