Home / 6,979.02-10,458.90-5,131.14

Finding the Fourth Proportional to 6,979.02, 10,458.90 and 5,131.14

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Solution

The fourth proportional to 6,979.02, 10,458.90 and 5,131.14 is: 7,689.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.02 : 10,458.90 = 5,131.14 : x
  2. Step 2: Convert to fraction form
    6,979.02/10,458.90 = 5,131.14/x
  3. Step 3: Cross multiply
    6,979.02x = 10,458.90 × 5,131.14
  4. Step 4: Simplify right side
    6,979.02x = 53,666,080.15
  5. Step 5: Solve for x
    x = 53,666,080.15/6,979.02
  6. Step 6: Final answer
    x = 7,689.63

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1.5x scale

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.