Home / 7,747.62-10,690.40-4,389.74

Finding the Fourth Proportional to 7,747.62, 10,690.40 and 4,389.74

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Solution

The fourth proportional to 7,747.62, 10,690.40 and 4,389.74 is: 6,057.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.62 : 10,690.40 = 4,389.74 : x
  2. Step 2: Convert to fraction form
    7,747.62/10,690.40 = 4,389.74/x
  3. Step 3: Cross multiply
    7,747.62x = 10,690.40 × 4,389.74
  4. Step 4: Simplify right side
    7,747.62x = 46,928,076.50
  5. Step 5: Solve for x
    x = 46,928,076.50/7,747.62
  6. Step 6: Final answer
    x = 6,057.10

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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.