Home / 1,740.64-2,611.37-1,247.28

Finding the Fourth Proportional to 1,740.64, 2,611.37 and 1,247.28

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Solution

The fourth proportional to 1,740.64, 2,611.37 and 1,247.28 is: 1,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,740.64 : 2,611.37 = 1,247.28 : x
  2. Step 2: Convert to fraction form
    1,740.64/2,611.37 = 1,247.28/x
  3. Step 3: Cross multiply
    1,740.64x = 2,611.37 × 1,247.28
  4. Step 4: Simplify right side
    1,740.64x = 3,257,109.57
  5. Step 5: Solve for x
    x = 3,257,109.57/1,740.64
  6. Step 6: Final answer
    x = 1,871.21

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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.