Home / 2,313.07-3,189.31-1,869.60

Finding the Fourth Proportional to 2,313.07, 3,189.31 and 1,869.60

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Solution

The fourth proportional to 2,313.07, 3,189.31 and 1,869.60 is: 2,577.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.07 : 3,189.31 = 1,869.60 : x
  2. Step 2: Convert to fraction form
    2,313.07/3,189.31 = 1,869.60/x
  3. Step 3: Cross multiply
    2,313.07x = 3,189.31 × 1,869.60
  4. Step 4: Simplify right side
    2,313.07x = 5,962,733.98
  5. Step 5: Solve for x
    x = 5,962,733.98/2,313.07
  6. Step 6: Final answer
    x = 2,577.84

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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.