Home / 2,237.47-3,087.70-1,242.76

Finding the Fourth Proportional to 2,237.47, 3,087.70 and 1,242.76

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Solution

The fourth proportional to 2,237.47, 3,087.70 and 1,242.76 is: 1,715.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.47 : 3,087.70 = 1,242.76 : x
  2. Step 2: Convert to fraction form
    2,237.47/3,087.70 = 1,242.76/x
  3. Step 3: Cross multiply
    2,237.47x = 3,087.70 × 1,242.76
  4. Step 4: Simplify right side
    2,237.47x = 3,837,270.05
  5. Step 5: Solve for x
    x = 3,837,270.05/2,237.47
  6. Step 6: Final answer
    x = 1,715.00

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Half scale
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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.