Home / 1,745.01-2,405.62-1,247.46

Finding the Fourth Proportional to 1,745.01, 2,405.62 and 1,247.46

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Solution

The fourth proportional to 1,745.01, 2,405.62 and 1,247.46 is: 1,719.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.01 : 2,405.62 = 1,247.46 : x
  2. Step 2: Convert to fraction form
    1,745.01/2,405.62 = 1,247.46/x
  3. Step 3: Cross multiply
    1,745.01x = 2,405.62 × 1,247.46
  4. Step 4: Simplify right side
    1,745.01x = 3,000,917.62
  5. Step 5: Solve for x
    x = 3,000,917.62/1,745.01
  6. Step 6: Final answer
    x = 1,719.72

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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.