Home / 1,897.11-2,617.85-1,057.75

Finding the Fourth Proportional to 1,897.11, 2,617.85 and 1,057.75

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Solution

The fourth proportional to 1,897.11, 2,617.85 and 1,057.75 is: 1,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.11 : 2,617.85 = 1,057.75 : x
  2. Step 2: Convert to fraction form
    1,897.11/2,617.85 = 1,057.75/x
  3. Step 3: Cross multiply
    1,897.11x = 2,617.85 × 1,057.75
  4. Step 4: Simplify right side
    1,897.11x = 2,769,030.84
  5. Step 5: Solve for x
    x = 2,769,030.84/1,897.11
  6. Step 6: Final answer
    x = 1,459.60

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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.