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Finding the Fourth Proportional to 1,811.49, 2,499.73 and 1,014.90

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Solution

The fourth proportional to 1,811.49, 2,499.73 and 1,014.90 is: 1,400.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.49 : 2,499.73 = 1,014.90 : x
  2. Step 2: Convert to fraction form
    1,811.49/2,499.73 = 1,014.90/x
  3. Step 3: Cross multiply
    1,811.49x = 2,499.73 × 1,014.90
  4. Step 4: Simplify right side
    1,811.49x = 2,536,975.98
  5. Step 5: Solve for x
    x = 2,536,975.98/1,811.49
  6. Step 6: Final answer
    x = 1,400.49

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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.