Home / 1,569.29-2,165.54-1,127.97

Finding the Fourth Proportional to 1,569.29, 2,165.54 and 1,127.97

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Solution

The fourth proportional to 1,569.29, 2,165.54 and 1,127.97 is: 1,556.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.29 : 2,165.54 = 1,127.97 : x
  2. Step 2: Convert to fraction form
    1,569.29/2,165.54 = 1,127.97/x
  3. Step 3: Cross multiply
    1,569.29x = 2,165.54 × 1,127.97
  4. Step 4: Simplify right side
    1,569.29x = 2,442,658.51
  5. Step 5: Solve for x
    x = 2,442,658.51/1,569.29
  6. Step 6: Final answer
    x = 1,556.54

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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.