Home / 1,885.24-2,816.71-1,820.65

Finding the Fourth Proportional to 1,885.24, 2,816.71 and 1,820.65

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Solution

The fourth proportional to 1,885.24, 2,816.71 and 1,820.65 is: 2,720.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.24 : 2,816.71 = 1,820.65 : x
  2. Step 2: Convert to fraction form
    1,885.24/2,816.71 = 1,820.65/x
  3. Step 3: Cross multiply
    1,885.24x = 2,816.71 × 1,820.65
  4. Step 4: Simplify right side
    1,885.24x = 5,128,243.06
  5. Step 5: Solve for x
    x = 5,128,243.06/1,885.24
  6. Step 6: Final answer
    x = 2,720.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.