Home / 1,838.21-2,535.47-1,174.77

Finding the Fourth Proportional to 1,838.21, 2,535.47 and 1,174.77

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Solution

The fourth proportional to 1,838.21, 2,535.47 and 1,174.77 is: 1,620.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838.21 : 2,535.47 = 1,174.77 : x
  2. Step 2: Convert to fraction form
    1,838.21/2,535.47 = 1,174.77/x
  3. Step 3: Cross multiply
    1,838.21x = 2,535.47 × 1,174.77
  4. Step 4: Simplify right side
    1,838.21x = 2,978,588.22
  5. Step 5: Solve for x
    x = 2,978,588.22/1,838.21
  6. Step 6: Final answer
    x = 1,620.38

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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.