Home / 3,946.34-5,918.12-1,313.13

Finding the Fourth Proportional to 3,946.34, 5,918.12 and 1,313.13

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Solution

The fourth proportional to 3,946.34, 5,918.12 and 1,313.13 is: 1,969.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.34 : 5,918.12 = 1,313.13 : x
  2. Step 2: Convert to fraction form
    3,946.34/5,918.12 = 1,313.13/x
  3. Step 3: Cross multiply
    3,946.34x = 5,918.12 × 1,313.13
  4. Step 4: Simplify right side
    3,946.34x = 7,771,260.92
  5. Step 5: Solve for x
    x = 7,771,260.92/3,946.34
  6. Step 6: Final answer
    x = 1,969.23

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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.