Home / 2,686.07-4,027.65-836.69

Finding the Fourth Proportional to 2,686.07, 4,027.65 and 836.69

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Solution

The fourth proportional to 2,686.07, 4,027.65 and 836.69 is: 1,254.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.07 : 4,027.65 = 836.69 : x
  2. Step 2: Convert to fraction form
    2,686.07/4,027.65 = 836.69/x
  3. Step 3: Cross multiply
    2,686.07x = 4,027.65 × 836.69
  4. Step 4: Simplify right side
    2,686.07x = 3,369,871.20
  5. Step 5: Solve for x
    x = 3,369,871.20/2,686.07
  6. Step 6: Final answer
    x = 1,254.57

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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.