Home / 2,980.64-4,470.96-1,682.18

Finding the Fourth Proportional to 2,980.64, 4,470.96 and 1,682.18

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Solution

The fourth proportional to 2,980.64, 4,470.96 and 1,682.18 is: 2,523.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.64 : 4,470.96 = 1,682.18 : x
  2. Step 2: Convert to fraction form
    2,980.64/4,470.96 = 1,682.18/x
  3. Step 3: Cross multiply
    2,980.64x = 4,470.96 × 1,682.18
  4. Step 4: Simplify right side
    2,980.64x = 7,520,959.49
  5. Step 5: Solve for x
    x = 7,520,959.49/2,980.64
  6. Step 6: Final answer
    x = 2,523.27

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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.