Home / 1,599.83-2,208.51-1,128.11

Finding the Fourth Proportional to 1,599.83, 2,208.51 and 1,128.11

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Solution

The fourth proportional to 1,599.83, 2,208.51 and 1,128.11 is: 1,557.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,599.83 : 2,208.51 = 1,128.11 : x
  2. Step 2: Convert to fraction form
    1,599.83/2,208.51 = 1,128.11/x
  3. Step 3: Cross multiply
    1,599.83x = 2,208.51 × 1,128.11
  4. Step 4: Simplify right side
    1,599.83x = 2,491,447.74
  5. Step 5: Solve for x
    x = 2,491,447.74/1,599.83
  6. Step 6: Final answer
    x = 1,557.32

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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.