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Finding the Fourth Proportional to 5,980.61, 8,970.92 and 2,859.88

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Solution

The fourth proportional to 5,980.61, 8,970.92 and 2,859.88 is: 4,289.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,980.61 : 8,970.92 = 2,859.88 : x
  2. Step 2: Convert to fraction form
    5,980.61/8,970.92 = 2,859.88/x
  3. Step 3: Cross multiply
    5,980.61x = 8,970.92 × 2,859.88
  4. Step 4: Simplify right side
    5,980.61x = 25,655,754.69
  5. Step 5: Solve for x
    x = 25,655,754.69/5,980.61
  6. Step 6: Final answer
    x = 4,289.82

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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.