Home / 2,691.18-3,710.40-1,745.34

Finding the Fourth Proportional to 2,691.18, 3,710.40 and 1,745.34

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Solution

The fourth proportional to 2,691.18, 3,710.40 and 1,745.34 is: 2,406.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.18 : 3,710.40 = 1,745.34 : x
  2. Step 2: Convert to fraction form
    2,691.18/3,710.40 = 1,745.34/x
  3. Step 3: Cross multiply
    2,691.18x = 3,710.40 × 1,745.34
  4. Step 4: Simplify right side
    2,691.18x = 6,475,909.54
  5. Step 5: Solve for x
    x = 6,475,909.54/2,691.18
  6. Step 6: Final answer
    x = 2,406.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.