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Finding the Fourth Proportional to 3,160.86, 4,734.95 and 1,574.80

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Solution

The fourth proportional to 3,160.86, 4,734.95 and 1,574.80 is: 2,359.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.86 : 4,734.95 = 1,574.80 : x
  2. Step 2: Convert to fraction form
    3,160.86/4,734.95 = 1,574.80/x
  3. Step 3: Cross multiply
    3,160.86x = 4,734.95 × 1,574.80
  4. Step 4: Simplify right side
    3,160.86x = 7,456,599.26
  5. Step 5: Solve for x
    x = 7,456,599.26/3,160.86
  6. Step 6: Final answer
    x = 2,359.04

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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.