Home / 3,030.20-4,545.80-949.79

Finding the Fourth Proportional to 3,030.20, 4,545.80 and 949.79

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Solution

The fourth proportional to 3,030.20, 4,545.80 and 949.79 is: 1,424.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.20 : 4,545.80 = 949.79 : x
  2. Step 2: Convert to fraction form
    3,030.20/4,545.80 = 949.79/x
  3. Step 3: Cross multiply
    3,030.20x = 4,545.80 × 949.79
  4. Step 4: Simplify right side
    3,030.20x = 4,317,535.03
  5. Step 5: Solve for x
    x = 4,317,535.03/3,030.20
  6. Step 6: Final answer
    x = 1,424.84

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1.5x scale

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.