Home / 3,585.40-4,947.77-1,992.05

Finding the Fourth Proportional to 3,585.40, 4,947.77 and 1,992.05

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Solution

The fourth proportional to 3,585.40, 4,947.77 and 1,992.05 is: 2,748.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.40 : 4,947.77 = 1,992.05 : x
  2. Step 2: Convert to fraction form
    3,585.40/4,947.77 = 1,992.05/x
  3. Step 3: Cross multiply
    3,585.40x = 4,947.77 × 1,992.05
  4. Step 4: Simplify right side
    3,585.40x = 9,856,211.00
  5. Step 5: Solve for x
    x = 9,856,211.00/3,585.40
  6. Step 6: Final answer
    x = 2,748.99

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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.