Home / 3,021.60-4,170.02-1,677.28

Finding the Fourth Proportional to 3,021.60, 4,170.02 and 1,677.28

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Solution

The fourth proportional to 3,021.60, 4,170.02 and 1,677.28 is: 2,314.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.60 : 4,170.02 = 1,677.28 : x
  2. Step 2: Convert to fraction form
    3,021.60/4,170.02 = 1,677.28/x
  3. Step 3: Cross multiply
    3,021.60x = 4,170.02 × 1,677.28
  4. Step 4: Simplify right side
    3,021.60x = 6,994,291.15
  5. Step 5: Solve for x
    x = 6,994,291.15/3,021.60
  6. Step 6: Final answer
    x = 2,314.76

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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.