Home / 4,783.51-7,175.26-1,320.75

Finding the Fourth Proportional to 4,783.51, 7,175.26 and 1,320.75

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Solution

The fourth proportional to 4,783.51, 7,175.26 and 1,320.75 is: 1,981.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,783.51 : 7,175.26 = 1,320.75 : x
  2. Step 2: Convert to fraction form
    4,783.51/7,175.26 = 1,320.75/x
  3. Step 3: Cross multiply
    4,783.51x = 7,175.26 × 1,320.75
  4. Step 4: Simplify right side
    4,783.51x = 9,476,718.04
  5. Step 5: Solve for x
    x = 9,476,718.04/4,783.51
  6. Step 6: Final answer
    x = 1,981.12

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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.