Home / 1,313.37-1,812.69-1,034.55

Finding the Fourth Proportional to 1,313.37, 1,812.69 and 1,034.55

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Solution

The fourth proportional to 1,313.37, 1,812.69 and 1,034.55 is: 1,427.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313.37 : 1,812.69 = 1,034.55 : x
  2. Step 2: Convert to fraction form
    1,313.37/1,812.69 = 1,034.55/x
  3. Step 3: Cross multiply
    1,313.37x = 1,812.69 × 1,034.55
  4. Step 4: Simplify right side
    1,313.37x = 1,875,318.44
  5. Step 5: Solve for x
    x = 1,875,318.44/1,313.37
  6. Step 6: Final answer
    x = 1,427.87

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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.