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Finding the Fourth Proportional to 2,645.40, 3,649.98 and 1,650.60

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Solution

The fourth proportional to 2,645.40, 3,649.98 and 1,650.60 is: 2,277.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.40 : 3,649.98 = 1,650.60 : x
  2. Step 2: Convert to fraction form
    2,645.40/3,649.98 = 1,650.60/x
  3. Step 3: Cross multiply
    2,645.40x = 3,649.98 × 1,650.60
  4. Step 4: Simplify right side
    2,645.40x = 6,024,656.99
  5. Step 5: Solve for x
    x = 6,024,656.99/2,645.40
  6. Step 6: Final answer
    x = 2,277.41

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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.