Home / 1,037.06-1,421.79-1,018.63

Finding the Fourth Proportional to 1,037.06, 1,421.79 and 1,018.63

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Solution

The fourth proportional to 1,037.06, 1,421.79 and 1,018.63 is: 1,396.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.06 : 1,421.79 = 1,018.63 : x
  2. Step 2: Convert to fraction form
    1,037.06/1,421.79 = 1,018.63/x
  3. Step 3: Cross multiply
    1,037.06x = 1,421.79 × 1,018.63
  4. Step 4: Simplify right side
    1,037.06x = 1,448,274.39
  5. Step 5: Solve for x
    x = 1,448,274.39/1,037.06
  6. Step 6: Final answer
    x = 1,396.53

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.