Home / 1,757.52-2,421.36-1,407.60

Finding the Fourth Proportional to 1,757.52, 2,421.36 and 1,407.60

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Solution

The fourth proportional to 1,757.52, 2,421.36 and 1,407.60 is: 1,939.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.52 : 2,421.36 = 1,407.60 : x
  2. Step 2: Convert to fraction form
    1,757.52/2,421.36 = 1,407.60/x
  3. Step 3: Cross multiply
    1,757.52x = 2,421.36 × 1,407.60
  4. Step 4: Simplify right side
    1,757.52x = 3,408,306.34
  5. Step 5: Solve for x
    x = 3,408,306.34/1,757.52
  6. Step 6: Final answer
    x = 1,939.27

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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.