Home / 2,980.22-4,112.68-1,654.16

Finding the Fourth Proportional to 2,980.22, 4,112.68 and 1,654.16

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Solution

The fourth proportional to 2,980.22, 4,112.68 and 1,654.16 is: 2,282.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.22 : 4,112.68 = 1,654.16 : x
  2. Step 2: Convert to fraction form
    2,980.22/4,112.68 = 1,654.16/x
  3. Step 3: Cross multiply
    2,980.22x = 4,112.68 × 1,654.16
  4. Step 4: Simplify right side
    2,980.22x = 6,803,022.48
  5. Step 5: Solve for x
    x = 6,803,022.48/2,980.22
  6. Step 6: Final answer
    x = 2,282.72

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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.