Home / 1,235.34-1,848.96-1,145.70

Finding the Fourth Proportional to 1,235.34, 1,848.96 and 1,145.70

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Solution

The fourth proportional to 1,235.34, 1,848.96 and 1,145.70 is: 1,714.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235.34 : 1,848.96 = 1,145.70 : x
  2. Step 2: Convert to fraction form
    1,235.34/1,848.96 = 1,145.70/x
  3. Step 3: Cross multiply
    1,235.34x = 1,848.96 × 1,145.70
  4. Step 4: Simplify right side
    1,235.34x = 2,118,353.47
  5. Step 5: Solve for x
    x = 2,118,353.47/1,235.34
  6. Step 6: Final answer
    x = 1,714.79

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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.