Home / 1,719.02-2,575.95-1,328.43

Finding the Fourth Proportional to 1,719.02, 2,575.95 and 1,328.43

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Solution

The fourth proportional to 1,719.02, 2,575.95 and 1,328.43 is: 1,990.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.02 : 2,575.95 = 1,328.43 : x
  2. Step 2: Convert to fraction form
    1,719.02/2,575.95 = 1,328.43/x
  3. Step 3: Cross multiply
    1,719.02x = 2,575.95 × 1,328.43
  4. Step 4: Simplify right side
    1,719.02x = 3,421,969.26
  5. Step 5: Solve for x
    x = 3,421,969.26/1,719.02
  6. Step 6: Final answer
    x = 1,990.66

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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.