Home / 1,313.55-1,807.34-1,076.63

Finding the Fourth Proportional to 1,313.55, 1,807.34 and 1,076.63

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Solution

The fourth proportional to 1,313.55, 1,807.34 and 1,076.63 is: 1,481.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313.55 : 1,807.34 = 1,076.63 : x
  2. Step 2: Convert to fraction form
    1,313.55/1,807.34 = 1,076.63/x
  3. Step 3: Cross multiply
    1,313.55x = 1,807.34 × 1,076.63
  4. Step 4: Simplify right side
    1,313.55x = 1,945,822.04
  5. Step 5: Solve for x
    x = 1,945,822.04/1,313.55
  6. Step 6: Final answer
    x = 1,481.35

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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.