Home / 2,980.14-4,470.69-1,005.95

Finding the Fourth Proportional to 2,980.14, 4,470.69 and 1,005.95

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Solution

The fourth proportional to 2,980.14, 4,470.69 and 1,005.95 is: 1,509.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.14 : 4,470.69 = 1,005.95 : x
  2. Step 2: Convert to fraction form
    2,980.14/4,470.69 = 1,005.95/x
  3. Step 3: Cross multiply
    2,980.14x = 4,470.69 × 1,005.95
  4. Step 4: Simplify right side
    2,980.14x = 4,497,268.25
  5. Step 5: Solve for x
    x = 4,497,268.25/2,980.14
  6. Step 6: Final answer
    x = 1,509.08

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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.