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Finding the Fourth Proportional to 1,883.65, 2,600.01 and 1,220.50

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Solution

The fourth proportional to 1,883.65, 2,600.01 and 1,220.50 is: 1,684.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,883.65 : 2,600.01 = 1,220.50 : x
  2. Step 2: Convert to fraction form
    1,883.65/2,600.01 = 1,220.50/x
  3. Step 3: Cross multiply
    1,883.65x = 2,600.01 × 1,220.50
  4. Step 4: Simplify right side
    1,883.65x = 3,173,312.21
  5. Step 5: Solve for x
    x = 3,173,312.21/1,883.65
  6. Step 6: Final answer
    x = 1,684.66

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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.