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Finding the Fourth Proportional to 2,035.86, 2,807.02 and 1,720.56

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Solution

The fourth proportional to 2,035.86, 2,807.02 and 1,720.56 is: 2,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,035.86 : 2,807.02 = 1,720.56 : x
  2. Step 2: Convert to fraction form
    2,035.86/2,807.02 = 1,720.56/x
  3. Step 3: Cross multiply
    2,035.86x = 2,807.02 × 1,720.56
  4. Step 4: Simplify right side
    2,035.86x = 4,829,649.05
  5. Step 5: Solve for x
    x = 4,829,649.05/2,035.86
  6. Step 6: Final answer
    x = 2,372.30

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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.