Home / 2,318.81-3,200.45-1,362.33

Finding the Fourth Proportional to 2,318.81, 3,200.45 and 1,362.33

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Solution

The fourth proportional to 2,318.81, 3,200.45 and 1,362.33 is: 1,880.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.81 : 3,200.45 = 1,362.33 : x
  2. Step 2: Convert to fraction form
    2,318.81/3,200.45 = 1,362.33/x
  3. Step 3: Cross multiply
    2,318.81x = 3,200.45 × 1,362.33
  4. Step 4: Simplify right side
    2,318.81x = 4,360,062.24
  5. Step 5: Solve for x
    x = 4,360,062.24/2,318.81
  6. Step 6: Final answer
    x = 1,880.31

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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.