Home / 6,887.81-9,505.38-3,903.55

Finding the Fourth Proportional to 6,887.81, 9,505.38 and 3,903.55

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Solution

The fourth proportional to 6,887.81, 9,505.38 and 3,903.55 is: 5,387.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.81 : 9,505.38 = 3,903.55 : x
  2. Step 2: Convert to fraction form
    6,887.81/9,505.38 = 3,903.55/x
  3. Step 3: Cross multiply
    6,887.81x = 9,505.38 × 3,903.55
  4. Step 4: Simplify right side
    6,887.81x = 37,104,726.10
  5. Step 5: Solve for x
    x = 37,104,726.10/6,887.81
  6. Step 6: Final answer
    x = 5,387.01

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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.