Home / 2,980.56-4,114.80-2,283.12

Finding the Fourth Proportional to 2,980.56, 4,114.80 and 2,283.12

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Solution

The fourth proportional to 2,980.56, 4,114.80 and 2,283.12 is: 3,151.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.56 : 4,114.80 = 2,283.12 : x
  2. Step 2: Convert to fraction form
    2,980.56/4,114.80 = 2,283.12/x
  3. Step 3: Cross multiply
    2,980.56x = 4,114.80 × 2,283.12
  4. Step 4: Simplify right side
    2,980.56x = 9,394,582.18
  5. Step 5: Solve for x
    x = 9,394,582.18/2,980.56
  6. Step 6: Final answer
    x = 3,151.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.