Home / 2,237.65-3,355.98-921.07

Finding the Fourth Proportional to 2,237.65, 3,355.98 and 921.07

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Solution

The fourth proportional to 2,237.65, 3,355.98 and 921.07 is: 1,381.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,237.65 : 3,355.98 = 921.07 : x
  2. Step 2: Convert to fraction form
    2,237.65/3,355.98 = 921.07/x
  3. Step 3: Cross multiply
    2,237.65x = 3,355.98 × 921.07
  4. Step 4: Simplify right side
    2,237.65x = 3,091,092.50
  5. Step 5: Solve for x
    x = 3,091,092.50/2,237.65
  6. Step 6: Final answer
    x = 1,381.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.