Home / 6,507.69-8,979.26-4,118.39

Finding the Fourth Proportional to 6,507.69, 8,979.26 and 4,118.39

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Solution

The fourth proportional to 6,507.69, 8,979.26 and 4,118.39 is: 5,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,507.69 : 8,979.26 = 4,118.39 : x
  2. Step 2: Convert to fraction form
    6,507.69/8,979.26 = 4,118.39/x
  3. Step 3: Cross multiply
    6,507.69x = 8,979.26 × 4,118.39
  4. Step 4: Simplify right side
    6,507.69x = 36,980,113.28
  5. Step 5: Solve for x
    x = 36,980,113.28/6,507.69
  6. Step 6: Final answer
    x = 5,682.52

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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.