Home / 1,861.98-2,569.01-1,199.67

Finding the Fourth Proportional to 1,861.98, 2,569.01 and 1,199.67

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Solution

The fourth proportional to 1,861.98, 2,569.01 and 1,199.67 is: 1,655.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.98 : 2,569.01 = 1,199.67 : x
  2. Step 2: Convert to fraction form
    1,861.98/2,569.01 = 1,199.67/x
  3. Step 3: Cross multiply
    1,861.98x = 2,569.01 × 1,199.67
  4. Step 4: Simplify right side
    1,861.98x = 3,081,964.23
  5. Step 5: Solve for x
    x = 3,081,964.23/1,861.98
  6. Step 6: Final answer
    x = 1,655.21

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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.