Home / 6,346.31-8,756.67-3,987.09

Finding the Fourth Proportional to 6,346.31, 8,756.67 and 3,987.09

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Solution

The fourth proportional to 6,346.31, 8,756.67 and 3,987.09 is: 5,501.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,346.31 : 8,756.67 = 3,987.09 : x
  2. Step 2: Convert to fraction form
    6,346.31/8,756.67 = 3,987.09/x
  3. Step 3: Cross multiply
    6,346.31x = 8,756.67 × 3,987.09
  4. Step 4: Simplify right side
    6,346.31x = 34,913,631.39
  5. Step 5: Solve for x
    x = 34,913,631.39/6,346.31
  6. Step 6: Final answer
    x = 5,501.41

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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.