Home / 1,611.83-2,225.17-1,140.11

Finding the Fourth Proportional to 1,611.83, 2,225.17 and 1,140.11

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Solution

The fourth proportional to 1,611.83, 2,225.17 and 1,140.11 is: 1,573.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.83 : 2,225.17 = 1,140.11 : x
  2. Step 2: Convert to fraction form
    1,611.83/2,225.17 = 1,140.11/x
  3. Step 3: Cross multiply
    1,611.83x = 2,225.17 × 1,140.11
  4. Step 4: Simplify right side
    1,611.83x = 2,536,937.21
  5. Step 5: Solve for x
    x = 2,536,937.21/1,611.83
  6. Step 6: Final answer
    x = 1,573.95

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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.