Home / 6,899.57-10,349.30-1,969.20

Finding the Fourth Proportional to 6,899.57, 10,349.30 and 1,969.20

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Solution

The fourth proportional to 6,899.57, 10,349.30 and 1,969.20 is: 2,953.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.57 : 10,349.30 = 1,969.20 : x
  2. Step 2: Convert to fraction form
    6,899.57/10,349.30 = 1,969.20/x
  3. Step 3: Cross multiply
    6,899.57x = 10,349.30 × 1,969.20
  4. Step 4: Simplify right side
    6,899.57x = 20,379,831.71
  5. Step 5: Solve for x
    x = 20,379,831.71/6,899.57
  6. Step 6: Final answer
    x = 2,953.79

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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.