Home / 1,313.12-1,968.23-1,159.41

Finding the Fourth Proportional to 1,313.12, 1,968.23 and 1,159.41

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Solution

The fourth proportional to 1,313.12, 1,968.23 and 1,159.41 is: 1,737.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313.12 : 1,968.23 = 1,159.41 : x
  2. Step 2: Convert to fraction form
    1,313.12/1,968.23 = 1,159.41/x
  3. Step 3: Cross multiply
    1,313.12x = 1,968.23 × 1,159.41
  4. Step 4: Simplify right side
    1,313.12x = 2,281,979.75
  5. Step 5: Solve for x
    x = 2,281,979.75/1,313.12
  6. Step 6: Final answer
    x = 1,737.84

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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.