Home / 2,301.23-3,175.40-1,356.81

Finding the Fourth Proportional to 2,301.23, 3,175.40 and 1,356.81

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Solution

The fourth proportional to 2,301.23, 3,175.40 and 1,356.81 is: 1,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,301.23 : 3,175.40 = 1,356.81 : x
  2. Step 2: Convert to fraction form
    2,301.23/3,175.40 = 1,356.81/x
  3. Step 3: Cross multiply
    2,301.23x = 3,175.40 × 1,356.81
  4. Step 4: Simplify right side
    2,301.23x = 4,308,407.69
  5. Step 5: Solve for x
    x = 4,308,407.69/2,301.23
  6. Step 6: Final answer
    x = 1,872.22

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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.