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Finding the Fourth Proportional to 3,606.76, 4,978.13 and 2,345.62

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Solution

The fourth proportional to 3,606.76, 4,978.13 and 2,345.62 is: 3,237.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.76 : 4,978.13 = 2,345.62 : x
  2. Step 2: Convert to fraction form
    3,606.76/4,978.13 = 2,345.62/x
  3. Step 3: Cross multiply
    3,606.76x = 4,978.13 × 2,345.62
  4. Step 4: Simplify right side
    3,606.76x = 11,676,801.29
  5. Step 5: Solve for x
    x = 11,676,801.29/3,606.76
  6. Step 6: Final answer
    x = 3,237.48

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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.