Home / 6,440.70-8,887.74-3,607.62

Finding the Fourth Proportional to 6,440.70, 8,887.74 and 3,607.62

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Solution

The fourth proportional to 6,440.70, 8,887.74 and 3,607.62 is: 4,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.70 : 8,887.74 = 3,607.62 : x
  2. Step 2: Convert to fraction form
    6,440.70/8,887.74 = 3,607.62/x
  3. Step 3: Cross multiply
    6,440.70x = 8,887.74 × 3,607.62
  4. Step 4: Simplify right side
    6,440.70x = 32,063,588.58
  5. Step 5: Solve for x
    x = 32,063,588.58/6,440.70
  6. Step 6: Final answer
    x = 4,978.28

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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.