Home / 1,247.58-1,718.46-1,037.34

Finding the Fourth Proportional to 1,247.58, 1,718.46 and 1,037.34

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Solution

The fourth proportional to 1,247.58, 1,718.46 and 1,037.34 is: 1,428.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.58 : 1,718.46 = 1,037.34 : x
  2. Step 2: Convert to fraction form
    1,247.58/1,718.46 = 1,037.34/x
  3. Step 3: Cross multiply
    1,247.58x = 1,718.46 × 1,037.34
  4. Step 4: Simplify right side
    1,247.58x = 1,782,627.30
  5. Step 5: Solve for x
    x = 1,782,627.30/1,247.58
  6. Step 6: Final answer
    x = 1,428.87

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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.