Home / 1,861.17-2,786.27-1,630.51

Finding the Fourth Proportional to 1,861.17, 2,786.27 and 1,630.51

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Solution

The fourth proportional to 1,861.17, 2,786.27 and 1,630.51 is: 2,440.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.17 : 2,786.27 = 1,630.51 : x
  2. Step 2: Convert to fraction form
    1,861.17/2,786.27 = 1,630.51/x
  3. Step 3: Cross multiply
    1,861.17x = 2,786.27 × 1,630.51
  4. Step 4: Simplify right side
    1,861.17x = 4,543,041.10
  5. Step 5: Solve for x
    x = 4,543,041.10/1,861.17
  6. Step 6: Final answer
    x = 2,440.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.