Home / 2,257.51-3,117.81-1,551.22

Finding the Fourth Proportional to 2,257.51, 3,117.81 and 1,551.22

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Solution

The fourth proportional to 2,257.51, 3,117.81 and 1,551.22 is: 2,142.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.51 : 3,117.81 = 1,551.22 : x
  2. Step 2: Convert to fraction form
    2,257.51/3,117.81 = 1,551.22/x
  3. Step 3: Cross multiply
    2,257.51x = 3,117.81 × 1,551.22
  4. Step 4: Simplify right side
    2,257.51x = 4,836,409.23
  5. Step 5: Solve for x
    x = 4,836,409.23/2,257.51
  6. Step 6: Final answer
    x = 2,142.36

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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.