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Finding the Fourth Proportional to 1,821.18, 2,732.52 and 651.33

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Solution

The fourth proportional to 1,821.18, 2,732.52 and 651.33 is: 977.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.18 : 2,732.52 = 651.33 : x
  2. Step 2: Convert to fraction form
    1,821.18/2,732.52 = 651.33/x
  3. Step 3: Cross multiply
    1,821.18x = 2,732.52 × 651.33
  4. Step 4: Simplify right side
    1,821.18x = 1,779,772.25
  5. Step 5: Solve for x
    x = 1,779,772.25/1,821.18
  6. Step 6: Final answer
    x = 977.26

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1.5x scale

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.