Home / 1,880.11-2,595.54-1,172.17

Finding the Fourth Proportional to 1,880.11, 2,595.54 and 1,172.17

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Solution

The fourth proportional to 1,880.11, 2,595.54 and 1,172.17 is: 1,618.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.11 : 2,595.54 = 1,172.17 : x
  2. Step 2: Convert to fraction form
    1,880.11/2,595.54 = 1,172.17/x
  3. Step 3: Cross multiply
    1,880.11x = 2,595.54 × 1,172.17
  4. Step 4: Simplify right side
    1,880.11x = 3,042,414.12
  5. Step 5: Solve for x
    x = 3,042,414.12/1,880.11
  6. Step 6: Final answer
    x = 1,618.21

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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.