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Finding the Fourth Proportional to 4,887.72, 6,745.05 and 2,649.67

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Solution

The fourth proportional to 4,887.72, 6,745.05 and 2,649.67 is: 3,656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,887.72 : 6,745.05 = 2,649.67 : x
  2. Step 2: Convert to fraction form
    4,887.72/6,745.05 = 2,649.67/x
  3. Step 3: Cross multiply
    4,887.72x = 6,745.05 × 2,649.67
  4. Step 4: Simplify right side
    4,887.72x = 17,872,139.77
  5. Step 5: Solve for x
    x = 17,872,139.77/4,887.72
  6. Step 6: Final answer
    x = 3,656.54

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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.