Home / 1,881.87-2,596.77-1,085.18

Finding the Fourth Proportional to 1,881.87, 2,596.77 and 1,085.18

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Solution

The fourth proportional to 1,881.87, 2,596.77 and 1,085.18 is: 1,497.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881.87 : 2,596.77 = 1,085.18 : x
  2. Step 2: Convert to fraction form
    1,881.87/2,596.77 = 1,085.18/x
  3. Step 3: Cross multiply
    1,881.87x = 2,596.77 × 1,085.18
  4. Step 4: Simplify right side
    1,881.87x = 2,817,949.88
  5. Step 5: Solve for x
    x = 2,817,949.88/1,881.87
  6. Step 6: Final answer
    x = 1,497.42

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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.