Home / 3,637.40-5,455.02-1,328.36

Finding the Fourth Proportional to 3,637.40, 5,455.02 and 1,328.36

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Solution

The fourth proportional to 3,637.40, 5,455.02 and 1,328.36 is: 1,992.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,637.40 : 5,455.02 = 1,328.36 : x
  2. Step 2: Convert to fraction form
    3,637.40/5,455.02 = 1,328.36/x
  3. Step 3: Cross multiply
    3,637.40x = 5,455.02 × 1,328.36
  4. Step 4: Simplify right side
    3,637.40x = 7,246,230.37
  5. Step 5: Solve for x
    x = 7,246,230.37/3,637.40
  6. Step 6: Final answer
    x = 1,992.15

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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.