Home / 1,745.25-2,406.19-1,429.35

Finding the Fourth Proportional to 1,745.25, 2,406.19 and 1,429.35

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Solution

The fourth proportional to 1,745.25, 2,406.19 and 1,429.35 is: 1,970.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.25 : 2,406.19 = 1,429.35 : x
  2. Step 2: Convert to fraction form
    1,745.25/2,406.19 = 1,429.35/x
  3. Step 3: Cross multiply
    1,745.25x = 2,406.19 × 1,429.35
  4. Step 4: Simplify right side
    1,745.25x = 3,439,279.22
  5. Step 5: Solve for x
    x = 3,439,279.22/1,745.25
  6. Step 6: Final answer
    x = 1,970.66

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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.