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Finding the Fourth Proportional to 3,649.59, 5,478.29 and 1,570.63

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Solution

The fourth proportional to 3,649.59, 5,478.29 and 1,570.63 is: 2,357.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.59 : 5,478.29 = 1,570.63 : x
  2. Step 2: Convert to fraction form
    3,649.59/5,478.29 = 1,570.63/x
  3. Step 3: Cross multiply
    3,649.59x = 5,478.29 × 1,570.63
  4. Step 4: Simplify right side
    3,649.59x = 8,604,350.96
  5. Step 5: Solve for x
    x = 8,604,350.96/3,649.59
  6. Step 6: Final answer
    x = 2,357.62

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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.