Home / 1,313.10-1,966.16-1,157.41

Finding the Fourth Proportional to 1,313.10, 1,966.16 and 1,157.41

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Solution

The fourth proportional to 1,313.10, 1,966.16 and 1,157.41 is: 1,733.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313.10 : 1,966.16 = 1,157.41 : x
  2. Step 2: Convert to fraction form
    1,313.10/1,966.16 = 1,157.41/x
  3. Step 3: Cross multiply
    1,313.10x = 1,966.16 × 1,157.41
  4. Step 4: Simplify right side
    1,313.10x = 2,275,647.46
  5. Step 5: Solve for x
    x = 2,275,647.46/1,313.10
  6. Step 6: Final answer
    x = 1,733.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.