Home / 7,319.65-10,985.19-2,939.98

Finding the Fourth Proportional to 7,319.65, 10,985.19 and 2,939.98

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Solution

The fourth proportional to 7,319.65, 10,985.19 and 2,939.98 is: 4,412.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.65 : 10,985.19 = 2,939.98 : x
  2. Step 2: Convert to fraction form
    7,319.65/10,985.19 = 2,939.98/x
  3. Step 3: Cross multiply
    7,319.65x = 10,985.19 × 2,939.98
  4. Step 4: Simplify right side
    7,319.65x = 32,296,238.90
  5. Step 5: Solve for x
    x = 32,296,238.90/7,319.65
  6. Step 6: Final answer
    x = 4,412.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.