Home / 2,343.89-3,515.55-612.65

Finding the Fourth Proportional to 2,343.89, 3,515.55 and 612.65

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Solution

The fourth proportional to 2,343.89, 3,515.55 and 612.65 is: 918.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,343.89 : 3,515.55 = 612.65 : x
  2. Step 2: Convert to fraction form
    2,343.89/3,515.55 = 612.65/x
  3. Step 3: Cross multiply
    2,343.89x = 3,515.55 × 612.65
  4. Step 4: Simplify right side
    2,343.89x = 2,153,784.13
  5. Step 5: Solve for x
    x = 2,153,784.13/2,343.89
  6. Step 6: Final answer
    x = 918.89

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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.