Home / 3,003.95-4,145.40-1,677.68

Finding the Fourth Proportional to 3,003.95, 4,145.40 and 1,677.68

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Solution

The fourth proportional to 3,003.95, 4,145.40 and 1,677.68 is: 2,315.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,003.95 : 4,145.40 = 1,677.68 : x
  2. Step 2: Convert to fraction form
    3,003.95/4,145.40 = 1,677.68/x
  3. Step 3: Cross multiply
    3,003.95x = 4,145.40 × 1,677.68
  4. Step 4: Simplify right side
    3,003.95x = 6,954,633.95
  5. Step 5: Solve for x
    x = 6,954,633.95/3,003.95
  6. Step 6: Final answer
    x = 2,315.17

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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.