Home / 4,783.46-7,175.60-1,320.71

Finding the Fourth Proportional to 4,783.46, 7,175.60 and 1,320.71

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Solution

The fourth proportional to 4,783.46, 7,175.60 and 1,320.71 is: 1,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,783.46 : 7,175.60 = 1,320.71 : x
  2. Step 2: Convert to fraction form
    4,783.46/7,175.60 = 1,320.71/x
  3. Step 3: Cross multiply
    4,783.46x = 7,175.60 × 1,320.71
  4. Step 4: Simplify right side
    4,783.46x = 9,476,844.19
  5. Step 5: Solve for x
    x = 9,476,844.19/4,783.46
  6. Step 6: Final answer
    x = 1,981.17

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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.