Home / 3,585.40-4,947.98-1,992.07

Finding the Fourth Proportional to 3,585.40, 4,947.98 and 1,992.07

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Solution

The fourth proportional to 3,585.40, 4,947.98 and 1,992.07 is: 2,749.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.40 : 4,947.98 = 1,992.07 : x
  2. Step 2: Convert to fraction form
    3,585.40/4,947.98 = 1,992.07/x
  3. Step 3: Cross multiply
    3,585.40x = 4,947.98 × 1,992.07
  4. Step 4: Simplify right side
    3,585.40x = 9,856,718.74
  5. Step 5: Solve for x
    x = 9,856,718.74/3,585.40
  6. Step 6: Final answer
    x = 2,749.13

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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.