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Finding the Fourth Proportional to 3,970.36, 5,955.09 and 1,048.90

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Solution

The fourth proportional to 3,970.36, 5,955.09 and 1,048.90 is: 1,573.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.36 : 5,955.09 = 1,048.90 : x
  2. Step 2: Convert to fraction form
    3,970.36/5,955.09 = 1,048.90/x
  3. Step 3: Cross multiply
    3,970.36x = 5,955.09 × 1,048.90
  4. Step 4: Simplify right side
    3,970.36x = 6,246,258.88
  5. Step 5: Solve for x
    x = 6,246,258.88/3,970.36
  6. Step 6: Final answer
    x = 1,573.22

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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.