Home / 7,782.60-10,740.06-4,639.08

Finding the Fourth Proportional to 7,782.60, 10,740.06 and 4,639.08

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Solution

The fourth proportional to 7,782.60, 10,740.06 and 4,639.08 is: 6,401.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,782.60 : 10,740.06 = 4,639.08 : x
  2. Step 2: Convert to fraction form
    7,782.60/10,740.06 = 4,639.08/x
  3. Step 3: Cross multiply
    7,782.60x = 10,740.06 × 4,639.08
  4. Step 4: Simplify right side
    7,782.60x = 49,823,997.54
  5. Step 5: Solve for x
    x = 49,823,997.54/7,782.60
  6. Step 6: Final answer
    x = 6,401.97

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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.