Home / 4,440.16-6,659.20-1,320.20

Finding the Fourth Proportional to 4,440.16, 6,659.20 and 1,320.20

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Solution

The fourth proportional to 4,440.16, 6,659.20 and 1,320.20 is: 1,979.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,440.16 : 6,659.20 = 1,320.20 : x
  2. Step 2: Convert to fraction form
    4,440.16/6,659.20 = 1,320.20/x
  3. Step 3: Cross multiply
    4,440.16x = 6,659.20 × 1,320.20
  4. Step 4: Simplify right side
    4,440.16x = 8,791,475.84
  5. Step 5: Solve for x
    x = 8,791,475.84/4,440.16
  6. Step 6: Final answer
    x = 1,979.99

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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.