Home / 6,440.56-8,887.96-3,646.32

Finding the Fourth Proportional to 6,440.56, 8,887.96 and 3,646.32

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Solution

The fourth proportional to 6,440.56, 8,887.96 and 3,646.32 is: 5,031.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.56 : 8,887.96 = 3,646.32 : x
  2. Step 2: Convert to fraction form
    6,440.56/8,887.96 = 3,646.32/x
  3. Step 3: Cross multiply
    6,440.56x = 8,887.96 × 3,646.32
  4. Step 4: Simplify right side
    6,440.56x = 32,408,346.31
  5. Step 5: Solve for x
    x = 32,408,346.31/6,440.56
  6. Step 6: Final answer
    x = 5,031.91

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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.