Home / 6,945.60-10,420.26-3,657.84

Finding the Fourth Proportional to 6,945.60, 10,420.26 and 3,657.84

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Solution

The fourth proportional to 6,945.60, 10,420.26 and 3,657.84 is: 5,487.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,945.60 : 10,420.26 = 3,657.84 : x
  2. Step 2: Convert to fraction form
    6,945.60/10,420.26 = 3,657.84/x
  3. Step 3: Cross multiply
    6,945.60x = 10,420.26 × 3,657.84
  4. Step 4: Simplify right side
    6,945.60x = 38,115,643.84
  5. Step 5: Solve for x
    x = 38,115,643.84/6,945.60
  6. Step 6: Final answer
    x = 5,487.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.