Home / 1,851.02-2,553.80-1,319.99

Finding the Fourth Proportional to 1,851.02, 2,553.80 and 1,319.99

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Solution

The fourth proportional to 1,851.02, 2,553.80 and 1,319.99 is: 1,821.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.02 : 2,553.80 = 1,319.99 : x
  2. Step 2: Convert to fraction form
    1,851.02/2,553.80 = 1,319.99/x
  3. Step 3: Cross multiply
    1,851.02x = 2,553.80 × 1,319.99
  4. Step 4: Simplify right side
    1,851.02x = 3,370,971.09
  5. Step 5: Solve for x
    x = 3,370,971.09/1,851.02
  6. Step 6: Final answer
    x = 1,821.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.