Home / 3,160.45-4,730.34-2,857.31

Finding the Fourth Proportional to 3,160.45, 4,730.34 and 2,857.31

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Solution

The fourth proportional to 3,160.45, 4,730.34 and 2,857.31 is: 4,276.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.45 : 4,730.34 = 2,857.31 : x
  2. Step 2: Convert to fraction form
    3,160.45/4,730.34 = 2,857.31/x
  3. Step 3: Cross multiply
    3,160.45x = 4,730.34 × 2,857.31
  4. Step 4: Simplify right side
    3,160.45x = 13,516,024.13
  5. Step 5: Solve for x
    x = 13,516,024.13/3,160.45
  6. Step 6: Final answer
    x = 4,276.62

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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.