Home / 2,237.80-3,087.80-1,243.06

Finding the Fourth Proportional to 2,237.80, 3,087.80 and 1,243.06

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Solution

The fourth proportional to 2,237.80, 3,087.80 and 1,243.06 is: 1,715.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.80 : 3,087.80 = 1,243.06 : x
  2. Step 2: Convert to fraction form
    2,237.80/3,087.80 = 1,243.06/x
  3. Step 3: Cross multiply
    2,237.80x = 3,087.80 × 1,243.06
  4. Step 4: Simplify right side
    2,237.80x = 3,838,320.67
  5. Step 5: Solve for x
    x = 3,838,320.67/2,237.80
  6. Step 6: Final answer
    x = 1,715.22

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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.