Home / 3,320.10-4,980.15-1,470.71

Finding the Fourth Proportional to 3,320.10, 4,980.15 and 1,470.71

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Solution

The fourth proportional to 3,320.10, 4,980.15 and 1,470.71 is: 2,206.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.10 : 4,980.15 = 1,470.71 : x
  2. Step 2: Convert to fraction form
    3,320.10/4,980.15 = 1,470.71/x
  3. Step 3: Cross multiply
    3,320.10x = 4,980.15 × 1,470.71
  4. Step 4: Simplify right side
    3,320.10x = 7,324,356.41
  5. Step 5: Solve for x
    x = 7,324,356.41/3,320.10
  6. Step 6: Final answer
    x = 2,206.07

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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.