Home / 1,037.15-1,555.80-344.30

Finding the Fourth Proportional to 1,037.15, 1,555.80 and 344.30

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Solution

The fourth proportional to 1,037.15, 1,555.80 and 344.30 is: 516.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.15 : 1,555.80 = 344.30 : x
  2. Step 2: Convert to fraction form
    1,037.15/1,555.80 = 344.30/x
  3. Step 3: Cross multiply
    1,037.15x = 1,555.80 × 344.30
  4. Step 4: Simplify right side
    1,037.15x = 535,662.23
  5. Step 5: Solve for x
    x = 535,662.23/1,037.15
  6. Step 6: Final answer
    x = 516.47

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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.