Home / 2,585.39-3,563.70-1,981.13

Finding the Fourth Proportional to 2,585.39, 3,563.70 and 1,981.13

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Solution

The fourth proportional to 2,585.39, 3,563.70 and 1,981.13 is: 2,730.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.39 : 3,563.70 = 1,981.13 : x
  2. Step 2: Convert to fraction form
    2,585.39/3,563.70 = 1,981.13/x
  3. Step 3: Cross multiply
    2,585.39x = 3,563.70 × 1,981.13
  4. Step 4: Simplify right side
    2,585.39x = 7,060,152.98
  5. Step 5: Solve for x
    x = 7,060,152.98/2,585.39
  6. Step 6: Final answer
    x = 2,730.79

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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.