Home / 6,111.64-8,437.53-3,989.24

Finding the Fourth Proportional to 6,111.64, 8,437.53 and 3,989.24

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Solution

The fourth proportional to 6,111.64, 8,437.53 and 3,989.24 is: 5,507.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,111.64 : 8,437.53 = 3,989.24 : x
  2. Step 2: Convert to fraction form
    6,111.64/8,437.53 = 3,989.24/x
  3. Step 3: Cross multiply
    6,111.64x = 8,437.53 × 3,989.24
  4. Step 4: Simplify right side
    6,111.64x = 33,659,332.18
  5. Step 5: Solve for x
    x = 33,659,332.18/6,111.64
  6. Step 6: Final answer
    x = 5,507.41

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Double scale
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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.