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Finding the Fourth Proportional to 5,856.42, 8,784.62 and 1,960.80

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Solution

The fourth proportional to 5,856.42, 8,784.62 and 1,960.80 is: 2,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,856.42 : 8,784.62 = 1,960.80 : x
  2. Step 2: Convert to fraction form
    5,856.42/8,784.62 = 1,960.80/x
  3. Step 3: Cross multiply
    5,856.42x = 8,784.62 × 1,960.80
  4. Step 4: Simplify right side
    5,856.42x = 17,224,882.90
  5. Step 5: Solve for x
    x = 17,224,882.90/5,856.42
  6. Step 6: Final answer
    x = 2,941.20

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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.