Home / 1,313.34-1,968.94-491.49

Finding the Fourth Proportional to 1,313.34, 1,968.94 and 491.49

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Solution

The fourth proportional to 1,313.34, 1,968.94 and 491.49 is: 736.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313.34 : 1,968.94 = 491.49 : x
  2. Step 2: Convert to fraction form
    1,313.34/1,968.94 = 491.49/x
  3. Step 3: Cross multiply
    1,313.34x = 1,968.94 × 491.49
  4. Step 4: Simplify right side
    1,313.34x = 967,714.32
  5. Step 5: Solve for x
    x = 967,714.32/1,313.34
  6. Step 6: Final answer
    x = 736.83

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1.5x scale

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.