Home / 1,857.68-2,564.18-1,072.28

Finding the Fourth Proportional to 1,857.68, 2,564.18 and 1,072.28

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Solution

The fourth proportional to 1,857.68, 2,564.18 and 1,072.28 is: 1,480.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.68 : 2,564.18 = 1,072.28 : x
  2. Step 2: Convert to fraction form
    1,857.68/2,564.18 = 1,072.28/x
  3. Step 3: Cross multiply
    1,857.68x = 2,564.18 × 1,072.28
  4. Step 4: Simplify right side
    1,857.68x = 2,749,518.93
  5. Step 5: Solve for x
    x = 2,749,518.93/1,857.68
  6. Step 6: Final answer
    x = 1,480.08

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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.