Home / 7,781.46-10,738.40-4,424.28

Finding the Fourth Proportional to 7,781.46, 10,738.40 and 4,424.28

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Solution

The fourth proportional to 7,781.46, 10,738.40 and 4,424.28 is: 6,105.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.46 : 10,738.40 = 4,424.28 : x
  2. Step 2: Convert to fraction form
    7,781.46/10,738.40 = 4,424.28/x
  3. Step 3: Cross multiply
    7,781.46x = 10,738.40 × 4,424.28
  4. Step 4: Simplify right side
    7,781.46x = 47,509,688.35
  5. Step 5: Solve for x
    x = 47,509,688.35/7,781.46
  6. Step 6: Final answer
    x = 6,105.50

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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.