Home / 3,119.99-4,304.95-1,775.28

Finding the Fourth Proportional to 3,119.99, 4,304.95 and 1,775.28

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Solution

The fourth proportional to 3,119.99, 4,304.95 and 1,775.28 is: 2,449.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.99 : 4,304.95 = 1,775.28 : x
  2. Step 2: Convert to fraction form
    3,119.99/4,304.95 = 1,775.28/x
  3. Step 3: Cross multiply
    3,119.99x = 4,304.95 × 1,775.28
  4. Step 4: Simplify right side
    3,119.99x = 7,642,503.34
  5. Step 5: Solve for x
    x = 7,642,503.34/3,119.99
  6. Step 6: Final answer
    x = 2,449.53

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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.