Home / 2,085.22-3,125.58-1,355.32

Finding the Fourth Proportional to 2,085.22, 3,125.58 and 1,355.32

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Solution

The fourth proportional to 2,085.22, 3,125.58 and 1,355.32 is: 2,031.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085.22 : 3,125.58 = 1,355.32 : x
  2. Step 2: Convert to fraction form
    2,085.22/3,125.58 = 1,355.32/x
  3. Step 3: Cross multiply
    2,085.22x = 3,125.58 × 1,355.32
  4. Step 4: Simplify right side
    2,085.22x = 4,236,161.09
  5. Step 5: Solve for x
    x = 4,236,161.09/2,085.22
  6. Step 6: Final answer
    x = 2,031.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.