Home / 7,767.56-10,719.40-4,230.76

Finding the Fourth Proportional to 7,767.56, 10,719.40 and 4,230.76

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Solution

The fourth proportional to 7,767.56, 10,719.40 and 4,230.76 is: 5,838.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.56 : 10,719.40 = 4,230.76 : x
  2. Step 2: Convert to fraction form
    7,767.56/10,719.40 = 4,230.76/x
  3. Step 3: Cross multiply
    7,767.56x = 10,719.40 × 4,230.76
  4. Step 4: Simplify right side
    7,767.56x = 45,351,208.74
  5. Step 5: Solve for x
    x = 45,351,208.74/7,767.56
  6. Step 6: Final answer
    x = 5,838.54

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Half scale
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Double scale
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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.