Home / 4,980.80-7,470.17-1,860.23

Finding the Fourth Proportional to 4,980.80, 7,470.17 and 1,860.23

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Solution

The fourth proportional to 4,980.80, 7,470.17 and 1,860.23 is: 2,789.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.80 : 7,470.17 = 1,860.23 : x
  2. Step 2: Convert to fraction form
    4,980.80/7,470.17 = 1,860.23/x
  3. Step 3: Cross multiply
    4,980.80x = 7,470.17 × 1,860.23
  4. Step 4: Simplify right side
    4,980.80x = 13,896,187.69
  5. Step 5: Solve for x
    x = 13,896,187.69/4,980.80
  6. Step 6: Final answer
    x = 2,789.95

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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.