Home / 3,430.43-5,141.76-1,577.72

Finding the Fourth Proportional to 3,430.43, 5,141.76 and 1,577.72

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Solution

The fourth proportional to 3,430.43, 5,141.76 and 1,577.72 is: 2,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.43 : 5,141.76 = 1,577.72 : x
  2. Step 2: Convert to fraction form
    3,430.43/5,141.76 = 1,577.72/x
  3. Step 3: Cross multiply
    3,430.43x = 5,141.76 × 1,577.72
  4. Step 4: Simplify right side
    3,430.43x = 8,112,257.59
  5. Step 5: Solve for x
    x = 8,112,257.59/3,430.43
  6. Step 6: Final answer
    x = 2,364.79

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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.