Home / 3,946.08-5,920.29-1,313.93

Finding the Fourth Proportional to 3,946.08, 5,920.29 and 1,313.93

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Solution

The fourth proportional to 3,946.08, 5,920.29 and 1,313.93 is: 1,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.08 : 5,920.29 = 1,313.93 : x
  2. Step 2: Convert to fraction form
    3,946.08/5,920.29 = 1,313.93/x
  3. Step 3: Cross multiply
    3,946.08x = 5,920.29 × 1,313.93
  4. Step 4: Simplify right side
    3,946.08x = 7,778,817.04
  5. Step 5: Solve for x
    x = 7,778,817.04/3,946.08
  6. Step 6: Final answer
    x = 1,971.28

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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.