Home / 2,313.57-3,190-1,870.10

Finding the Fourth Proportional to 2,313.57, 3,190 and 1,870.10

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Solution

The fourth proportional to 2,313.57, 3,190 and 1,870.10 is: 2,578.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.57 : 3,190 = 1,870.10 : x
  2. Step 2: Convert to fraction form
    2,313.57/3,190 = 1,870.10/x
  3. Step 3: Cross multiply
    2,313.57x = 3,190 × 1,870.10
  4. Step 4: Simplify right side
    2,313.57x = 5,965,619
  5. Step 5: Solve for x
    x = 5,965,619/2,313.57
  6. Step 6: Final answer
    x = 2,578.53

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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.