Home / 2,977.60-4,109.68-1,719.48

Finding the Fourth Proportional to 2,977.60, 4,109.68 and 1,719.48

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Solution

The fourth proportional to 2,977.60, 4,109.68 and 1,719.48 is: 2,373.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.60 : 4,109.68 = 1,719.48 : x
  2. Step 2: Convert to fraction form
    2,977.60/4,109.68 = 1,719.48/x
  3. Step 3: Cross multiply
    2,977.60x = 4,109.68 × 1,719.48
  4. Step 4: Simplify right side
    2,977.60x = 7,066,512.57
  5. Step 5: Solve for x
    x = 7,066,512.57/2,977.60
  6. Step 6: Final answer
    x = 2,373.22

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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.