Home / 3,430.83-4,731.71-2,981.96

Finding the Fourth Proportional to 3,430.83, 4,731.71 and 2,981.96

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Solution

The fourth proportional to 3,430.83, 4,731.71 and 2,981.96 is: 4,112.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.83 : 4,731.71 = 2,981.96 : x
  2. Step 2: Convert to fraction form
    3,430.83/4,731.71 = 2,981.96/x
  3. Step 3: Cross multiply
    3,430.83x = 4,731.71 × 2,981.96
  4. Step 4: Simplify right side
    3,430.83x = 14,109,731.38
  5. Step 5: Solve for x
    x = 14,109,731.38/3,430.83
  6. Step 6: Final answer
    x = 4,112.63

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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.