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Finding the Fourth Proportional to 1,823.51, 2,735.57 and 653.47

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Solution

The fourth proportional to 1,823.51, 2,735.57 and 653.47 is: 980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,823.51 : 2,735.57 = 653.47 : x
  2. Step 2: Convert to fraction form
    1,823.51/2,735.57 = 653.47/x
  3. Step 3: Cross multiply
    1,823.51x = 2,735.57 × 653.47
  4. Step 4: Simplify right side
    1,823.51x = 1,787,607.72
  5. Step 5: Solve for x
    x = 1,787,607.72/1,823.51
  6. Step 6: Final answer
    x = 980.31

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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.