Home / 4,219.92-6,330.48-1,298.46

Finding the Fourth Proportional to 4,219.92, 6,330.48 and 1,298.46

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Solution

The fourth proportional to 4,219.92, 6,330.48 and 1,298.46 is: 1,947.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.92 : 6,330.48 = 1,298.46 : x
  2. Step 2: Convert to fraction form
    4,219.92/6,330.48 = 1,298.46/x
  3. Step 3: Cross multiply
    4,219.92x = 6,330.48 × 1,298.46
  4. Step 4: Simplify right side
    4,219.92x = 8,219,875.06
  5. Step 5: Solve for x
    x = 8,219,875.06/4,219.92
  6. Step 6: Final answer
    x = 1,947.87

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.