Home / 2,310.95-3,188.76-1,316.18

Finding the Fourth Proportional to 2,310.95, 3,188.76 and 1,316.18

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Solution

The fourth proportional to 2,310.95, 3,188.76 and 1,316.18 is: 1,816.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.95 : 3,188.76 = 1,316.18 : x
  2. Step 2: Convert to fraction form
    2,310.95/3,188.76 = 1,316.18/x
  3. Step 3: Cross multiply
    2,310.95x = 3,188.76 × 1,316.18
  4. Step 4: Simplify right side
    2,310.95x = 4,196,982.14
  5. Step 5: Solve for x
    x = 4,196,982.14/2,310.95
  6. Step 6: Final answer
    x = 1,816.13

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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.