Home / 1,653.51-2,479.86-1,135.11

Finding the Fourth Proportional to 1,653.51, 2,479.86 and 1,135.11

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Solution

The fourth proportional to 1,653.51, 2,479.86 and 1,135.11 is: 1,702.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653.51 : 2,479.86 = 1,135.11 : x
  2. Step 2: Convert to fraction form
    1,653.51/2,479.86 = 1,135.11/x
  3. Step 3: Cross multiply
    1,653.51x = 2,479.86 × 1,135.11
  4. Step 4: Simplify right side
    1,653.51x = 2,814,913.88
  5. Step 5: Solve for x
    x = 2,814,913.88/1,653.51
  6. Step 6: Final answer
    x = 1,702.39

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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.