Home / 6,887.28-9,505.32-3,903.60

Finding the Fourth Proportional to 6,887.28, 9,505.32 and 3,903.60

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Solution

The fourth proportional to 6,887.28, 9,505.32 and 3,903.60 is: 5,387.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.28 : 9,505.32 = 3,903.60 : x
  2. Step 2: Convert to fraction form
    6,887.28/9,505.32 = 3,903.60/x
  3. Step 3: Cross multiply
    6,887.28x = 9,505.32 × 3,903.60
  4. Step 4: Simplify right side
    6,887.28x = 37,104,967.15
  5. Step 5: Solve for x
    x = 37,104,967.15/6,887.28
  6. Step 6: Final answer
    x = 5,387.46

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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.