Home / 2,135.58-2,948.55-1,339.23

Finding the Fourth Proportional to 2,135.58, 2,948.55 and 1,339.23

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Solution

The fourth proportional to 2,135.58, 2,948.55 and 1,339.23 is: 1,849.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.58 : 2,948.55 = 1,339.23 : x
  2. Step 2: Convert to fraction form
    2,135.58/2,948.55 = 1,339.23/x
  3. Step 3: Cross multiply
    2,135.58x = 2,948.55 × 1,339.23
  4. Step 4: Simplify right side
    2,135.58x = 3,948,786.62
  5. Step 5: Solve for x
    x = 3,948,786.62/2,135.58
  6. Step 6: Final answer
    x = 1,849.05

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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.