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Finding the Fourth Proportional to 5,674.95, 8,512.68 and 1,977.47

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Solution

The fourth proportional to 5,674.95, 8,512.68 and 1,977.47 is: 2,966.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,674.95 : 8,512.68 = 1,977.47 : x
  2. Step 2: Convert to fraction form
    5,674.95/8,512.68 = 1,977.47/x
  3. Step 3: Cross multiply
    5,674.95x = 8,512.68 × 1,977.47
  4. Step 4: Simplify right side
    5,674.95x = 16,833,566.09
  5. Step 5: Solve for x
    x = 16,833,566.09/5,674.95
  6. Step 6: Final answer
    x = 2,966.29

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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.