Home / 2,135.35-2,948.25-1,339.03

Finding the Fourth Proportional to 2,135.35, 2,948.25 and 1,339.03

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Solution

The fourth proportional to 2,135.35, 2,948.25 and 1,339.03 is: 1,848.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.35 : 2,948.25 = 1,339.03 : x
  2. Step 2: Convert to fraction form
    2,135.35/2,948.25 = 1,339.03/x
  3. Step 3: Cross multiply
    2,135.35x = 2,948.25 × 1,339.03
  4. Step 4: Simplify right side
    2,135.35x = 3,947,795.20
  5. Step 5: Solve for x
    x = 3,947,795.20/2,135.35
  6. Step 6: Final answer
    x = 1,848.78

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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.