Home / 6,861.43-10,292.70-1,931.47

Finding the Fourth Proportional to 6,861.43, 10,292.70 and 1,931.47

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Solution

The fourth proportional to 6,861.43, 10,292.70 and 1,931.47 is: 2,897.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.43 : 10,292.70 = 1,931.47 : x
  2. Step 2: Convert to fraction form
    6,861.43/10,292.70 = 1,931.47/x
  3. Step 3: Cross multiply
    6,861.43x = 10,292.70 × 1,931.47
  4. Step 4: Simplify right side
    6,861.43x = 19,880,022.78
  5. Step 5: Solve for x
    x = 19,880,022.78/6,861.43
  6. Step 6: Final answer
    x = 2,897.36

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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.