Home / 1,745.04-2,407.20-1,147.20

Finding the Fourth Proportional to 1,745.04, 2,407.20 and 1,147.20

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Solution

The fourth proportional to 1,745.04, 2,407.20 and 1,147.20 is: 1,582.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.04 : 2,407.20 = 1,147.20 : x
  2. Step 2: Convert to fraction form
    1,745.04/2,407.20 = 1,147.20/x
  3. Step 3: Cross multiply
    1,745.04x = 2,407.20 × 1,147.20
  4. Step 4: Simplify right side
    1,745.04x = 2,761,539.84
  5. Step 5: Solve for x
    x = 2,761,539.84/1,745.04
  6. Step 6: Final answer
    x = 1,582.51

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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.