Home / 1,745.47-2,407.67-1,247.24

Finding the Fourth Proportional to 1,745.47, 2,407.67 and 1,247.24

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Solution

The fourth proportional to 1,745.47, 2,407.67 and 1,247.24 is: 1,720.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.47 : 2,407.67 = 1,247.24 : x
  2. Step 2: Convert to fraction form
    1,745.47/2,407.67 = 1,247.24/x
  3. Step 3: Cross multiply
    1,745.47x = 2,407.67 × 1,247.24
  4. Step 4: Simplify right side
    1,745.47x = 3,002,924.06
  5. Step 5: Solve for x
    x = 3,002,924.06/1,745.47
  6. Step 6: Final answer
    x = 1,720.41

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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.