Home / 6,445.94-8,897.01-3,960.50

Finding the Fourth Proportional to 6,445.94, 8,897.01 and 3,960.50

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Solution

The fourth proportional to 6,445.94, 8,897.01 and 3,960.50 is: 5,466.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445.94 : 8,897.01 = 3,960.50 : x
  2. Step 2: Convert to fraction form
    6,445.94/8,897.01 = 3,960.50/x
  3. Step 3: Cross multiply
    6,445.94x = 8,897.01 × 3,960.50
  4. Step 4: Simplify right side
    6,445.94x = 35,236,608.11
  5. Step 5: Solve for x
    x = 35,236,608.11/6,445.94
  6. Step 6: Final answer
    x = 5,466.48

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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.