Home / 3,159.51-4,358.79-1,900.58

Finding the Fourth Proportional to 3,159.51, 4,358.79 and 1,900.58

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Solution

The fourth proportional to 3,159.51, 4,358.79 and 1,900.58 is: 2,621.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.51 : 4,358.79 = 1,900.58 : x
  2. Step 2: Convert to fraction form
    3,159.51/4,358.79 = 1,900.58/x
  3. Step 3: Cross multiply
    3,159.51x = 4,358.79 × 1,900.58
  4. Step 4: Simplify right side
    3,159.51x = 8,284,207.30
  5. Step 5: Solve for x
    x = 8,284,207.30/3,159.51
  6. Step 6: Final answer
    x = 2,621.99

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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.