Home / 1,574.23-2,174.01-1,297.21

Finding the Fourth Proportional to 1,574.23, 2,174.01 and 1,297.21

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Solution

The fourth proportional to 1,574.23, 2,174.01 and 1,297.21 is: 1,791.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,574.23 : 2,174.01 = 1,297.21 : x
  2. Step 2: Convert to fraction form
    1,574.23/2,174.01 = 1,297.21/x
  3. Step 3: Cross multiply
    1,574.23x = 2,174.01 × 1,297.21
  4. Step 4: Simplify right side
    1,574.23x = 2,820,147.51
  5. Step 5: Solve for x
    x = 2,820,147.51/1,574.23
  6. Step 6: Final answer
    x = 1,791.45

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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.