Home / 2,128.86-2,937.84-1,232.58

Finding the Fourth Proportional to 2,128.86, 2,937.84 and 1,232.58

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Solution

The fourth proportional to 2,128.86, 2,937.84 and 1,232.58 is: 1,700.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128.86 : 2,937.84 = 1,232.58 : x
  2. Step 2: Convert to fraction form
    2,128.86/2,937.84 = 1,232.58/x
  3. Step 3: Cross multiply
    2,128.86x = 2,937.84 × 1,232.58
  4. Step 4: Simplify right side
    2,128.86x = 3,621,122.83
  5. Step 5: Solve for x
    x = 3,621,122.83/2,128.86
  6. Step 6: Final answer
    x = 1,700.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.