Home / 3,074.81-4,243.28-1,677.56

Finding the Fourth Proportional to 3,074.81, 4,243.28 and 1,677.56

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Solution

The fourth proportional to 3,074.81, 4,243.28 and 1,677.56 is: 2,315.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.81 : 4,243.28 = 1,677.56 : x
  2. Step 2: Convert to fraction form
    3,074.81/4,243.28 = 1,677.56/x
  3. Step 3: Cross multiply
    3,074.81x = 4,243.28 × 1,677.56
  4. Step 4: Simplify right side
    3,074.81x = 7,118,356.80
  5. Step 5: Solve for x
    x = 7,118,356.80/3,074.81
  6. Step 6: Final answer
    x = 2,315.06

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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.