Home / 6,511.29-8,984.03-3,678.72

Finding the Fourth Proportional to 6,511.29, 8,984.03 and 3,678.72

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Solution

The fourth proportional to 6,511.29, 8,984.03 and 3,678.72 is: 5,075.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.29 : 8,984.03 = 3,678.72 : x
  2. Step 2: Convert to fraction form
    6,511.29/8,984.03 = 3,678.72/x
  3. Step 3: Cross multiply
    6,511.29x = 8,984.03 × 3,678.72
  4. Step 4: Simplify right side
    6,511.29x = 33,049,712.45
  5. Step 5: Solve for x
    x = 33,049,712.45/6,511.29
  6. Step 6: Final answer
    x = 5,075.75

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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.