Home / 4,292.32-6,439.08-1,330.12

Finding the Fourth Proportional to 4,292.32, 6,439.08 and 1,330.12

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Solution

The fourth proportional to 4,292.32, 6,439.08 and 1,330.12 is: 1,995.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292.32 : 6,439.08 = 1,330.12 : x
  2. Step 2: Convert to fraction form
    4,292.32/6,439.08 = 1,330.12/x
  3. Step 3: Cross multiply
    4,292.32x = 6,439.08 × 1,330.12
  4. Step 4: Simplify right side
    4,292.32x = 8,564,749.09
  5. Step 5: Solve for x
    x = 8,564,749.09/4,292.32
  6. Step 6: Final answer
    x = 1,995.37

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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.