Home / 6,401.56-8,835.36-3,607.06

Finding the Fourth Proportional to 6,401.56, 8,835.36 and 3,607.06

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Solution

The fourth proportional to 6,401.56, 8,835.36 and 3,607.06 is: 4,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,401.56 : 8,835.36 = 3,607.06 : x
  2. Step 2: Convert to fraction form
    6,401.56/8,835.36 = 3,607.06/x
  3. Step 3: Cross multiply
    6,401.56x = 8,835.36 × 3,607.06
  4. Step 4: Simplify right side
    6,401.56x = 31,869,673.64
  5. Step 5: Solve for x
    x = 31,869,673.64/6,401.56
  6. Step 6: Final answer
    x = 4,978.42

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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.