Home / 2,310.65-3,188.76-1,316.07

Finding the Fourth Proportional to 2,310.65, 3,188.76 and 1,316.07

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Solution

The fourth proportional to 2,310.65, 3,188.76 and 1,316.07 is: 1,816.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.65 : 3,188.76 = 1,316.07 : x
  2. Step 2: Convert to fraction form
    2,310.65/3,188.76 = 1,316.07/x
  3. Step 3: Cross multiply
    2,310.65x = 3,188.76 × 1,316.07
  4. Step 4: Simplify right side
    2,310.65x = 4,196,631.37
  5. Step 5: Solve for x
    x = 4,196,631.37/2,310.65
  6. Step 6: Final answer
    x = 1,816.21

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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.