Home / 1,649.91-2,474.40-1,186.31

Finding the Fourth Proportional to 1,649.91, 2,474.40 and 1,186.31

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Solution

The fourth proportional to 1,649.91, 2,474.40 and 1,186.31 is: 1,779.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649.91 : 2,474.40 = 1,186.31 : x
  2. Step 2: Convert to fraction form
    1,649.91/2,474.40 = 1,186.31/x
  3. Step 3: Cross multiply
    1,649.91x = 2,474.40 × 1,186.31
  4. Step 4: Simplify right side
    1,649.91x = 2,935,405.46
  5. Step 5: Solve for x
    x = 2,935,405.46/1,649.91
  6. Step 6: Final answer
    x = 1,779.13

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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.