Home / 3,156.06-4,355.43-1,758.90

Finding the Fourth Proportional to 3,156.06, 4,355.43 and 1,758.90

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Solution

The fourth proportional to 3,156.06, 4,355.43 and 1,758.90 is: 2,427.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.06 : 4,355.43 = 1,758.90 : x
  2. Step 2: Convert to fraction form
    3,156.06/4,355.43 = 1,758.90/x
  3. Step 3: Cross multiply
    3,156.06x = 4,355.43 × 1,758.90
  4. Step 4: Simplify right side
    3,156.06x = 7,660,765.83
  5. Step 5: Solve for x
    x = 7,660,765.83/3,156.06
  6. Step 6: Final answer
    x = 2,427.32

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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.