Home / 7,331.58-10,979.14-5,130

Finding the Fourth Proportional to 7,331.58, 10,979.14 and 5,130

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Solution

The fourth proportional to 7,331.58, 10,979.14 and 5,130 is: 7,682.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.58 : 10,979.14 = 5,130 : x
  2. Step 2: Convert to fraction form
    7,331.58/10,979.14 = 5,130/x
  3. Step 3: Cross multiply
    7,331.58x = 10,979.14 × 5,130
  4. Step 4: Simplify right side
    7,331.58x = 56,322,988.20
  5. Step 5: Solve for x
    x = 56,322,988.20/7,331.58
  6. Step 6: Final answer
    x = 7,682.24

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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.