Home / 7,690.84-10,612.44-4,333.55

Finding the Fourth Proportional to 7,690.84, 10,612.44 and 4,333.55

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Solution

The fourth proportional to 7,690.84, 10,612.44 and 4,333.55 is: 5,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.84 : 10,612.44 = 4,333.55 : x
  2. Step 2: Convert to fraction form
    7,690.84/10,612.44 = 4,333.55/x
  3. Step 3: Cross multiply
    7,690.84x = 10,612.44 × 4,333.55
  4. Step 4: Simplify right side
    7,690.84x = 45,989,486.30
  5. Step 5: Solve for x
    x = 45,989,486.30/7,690.84
  6. Step 6: Final answer
    x = 5,979.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.