Home / 3,946.54-5,918.77-1,172.47

Finding the Fourth Proportional to 3,946.54, 5,918.77 and 1,172.47

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Solution

The fourth proportional to 3,946.54, 5,918.77 and 1,172.47 is: 1,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.54 : 5,918.77 = 1,172.47 : x
  2. Step 2: Convert to fraction form
    3,946.54/5,918.77 = 1,172.47/x
  3. Step 3: Cross multiply
    3,946.54x = 5,918.77 × 1,172.47
  4. Step 4: Simplify right side
    3,946.54x = 6,939,580.26
  5. Step 5: Solve for x
    x = 6,939,580.26/3,946.54
  6. Step 6: Final answer
    x = 1,758.40

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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.