Home / 6,511.47-8,983.05-4,120.28

Finding the Fourth Proportional to 6,511.47, 8,983.05 and 4,120.28

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Solution

The fourth proportional to 6,511.47, 8,983.05 and 4,120.28 is: 5,684.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.47 : 8,983.05 = 4,120.28 : x
  2. Step 2: Convert to fraction form
    6,511.47/8,983.05 = 4,120.28/x
  3. Step 3: Cross multiply
    6,511.47x = 8,983.05 × 4,120.28
  4. Step 4: Simplify right side
    6,511.47x = 37,012,728.28
  5. Step 5: Solve for x
    x = 37,012,728.28/6,511.47
  6. Step 6: Final answer
    x = 5,684.23

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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.