Home / 2,830.24-4,244.35-980.86

Finding the Fourth Proportional to 2,830.24, 4,244.35 and 980.86

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Solution

The fourth proportional to 2,830.24, 4,244.35 and 980.86 is: 1,470.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.24 : 4,244.35 = 980.86 : x
  2. Step 2: Convert to fraction form
    2,830.24/4,244.35 = 980.86/x
  3. Step 3: Cross multiply
    2,830.24x = 4,244.35 × 980.86
  4. Step 4: Simplify right side
    2,830.24x = 4,163,113.14
  5. Step 5: Solve for x
    x = 4,163,113.14/2,830.24
  6. Step 6: Final answer
    x = 1,470.94

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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.