Home / 1,811.48-2,718.08-1,328.52

Finding the Fourth Proportional to 1,811.48, 2,718.08 and 1,328.52

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Solution

The fourth proportional to 1,811.48, 2,718.08 and 1,328.52 is: 1,993.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.48 : 2,718.08 = 1,328.52 : x
  2. Step 2: Convert to fraction form
    1,811.48/2,718.08 = 1,328.52/x
  3. Step 3: Cross multiply
    1,811.48x = 2,718.08 × 1,328.52
  4. Step 4: Simplify right side
    1,811.48x = 3,611,023.64
  5. Step 5: Solve for x
    x = 3,611,023.64/1,811.48
  6. Step 6: Final answer
    x = 1,993.41

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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.