Home / 6,984.29-10,475.58-1,986.77

Finding the Fourth Proportional to 6,984.29, 10,475.58 and 1,986.77

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Solution

The fourth proportional to 6,984.29, 10,475.58 and 1,986.77 is: 2,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,984.29 : 10,475.58 = 1,986.77 : x
  2. Step 2: Convert to fraction form
    6,984.29/10,475.58 = 1,986.77/x
  3. Step 3: Cross multiply
    6,984.29x = 10,475.58 × 1,986.77
  4. Step 4: Simplify right side
    6,984.29x = 20,812,568.08
  5. Step 5: Solve for x
    x = 20,812,568.08/6,984.29
  6. Step 6: Final answer
    x = 2,979.91

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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.