Home / 1,448.48-2,009.52-1,396.64

Finding the Fourth Proportional to 1,448.48, 2,009.52 and 1,396.64

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Solution

The fourth proportional to 1,448.48, 2,009.52 and 1,396.64 is: 1,937.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448.48 : 2,009.52 = 1,396.64 : x
  2. Step 2: Convert to fraction form
    1,448.48/2,009.52 = 1,396.64/x
  3. Step 3: Cross multiply
    1,448.48x = 2,009.52 × 1,396.64
  4. Step 4: Simplify right side
    1,448.48x = 2,806,576.01
  5. Step 5: Solve for x
    x = 2,806,576.01/1,448.48
  6. Step 6: Final answer
    x = 1,937.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.