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Finding the Fourth Proportional to 6,570.86, 9,856.20 and 1,640.48

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Solution

The fourth proportional to 6,570.86, 9,856.20 and 1,640.48 is: 2,460.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,570.86 : 9,856.20 = 1,640.48 : x
  2. Step 2: Convert to fraction form
    6,570.86/9,856.20 = 1,640.48/x
  3. Step 3: Cross multiply
    6,570.86x = 9,856.20 × 1,640.48
  4. Step 4: Simplify right side
    6,570.86x = 16,168,898.98
  5. Step 5: Solve for x
    x = 16,168,898.98/6,570.86
  6. Step 6: Final answer
    x = 2,460.70

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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.