Home / 1,606.20-2,408.70-1,117.80

Finding the Fourth Proportional to 1,606.20, 2,408.70 and 1,117.80

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Solution

The fourth proportional to 1,606.20, 2,408.70 and 1,117.80 is: 1,676.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,606.20 : 2,408.70 = 1,117.80 : x
  2. Step 2: Convert to fraction form
    1,606.20/2,408.70 = 1,117.80/x
  3. Step 3: Cross multiply
    1,606.20x = 2,408.70 × 1,117.80
  4. Step 4: Simplify right side
    1,606.20x = 2,692,444.86
  5. Step 5: Solve for x
    x = 2,692,444.86/1,606.20
  6. Step 6: Final answer
    x = 1,676.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.