Home / 1,897.21-2,617.81-1,400.28

Finding the Fourth Proportional to 1,897.21, 2,617.81 and 1,400.28

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Solution

The fourth proportional to 1,897.21, 2,617.81 and 1,400.28 is: 1,932.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.21 : 2,617.81 = 1,400.28 : x
  2. Step 2: Convert to fraction form
    1,897.21/2,617.81 = 1,400.28/x
  3. Step 3: Cross multiply
    1,897.21x = 2,617.81 × 1,400.28
  4. Step 4: Simplify right side
    1,897.21x = 3,665,666.99
  5. Step 5: Solve for x
    x = 3,665,666.99/1,897.21
  6. Step 6: Final answer
    x = 1,932.14

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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.