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Finding the Fourth Proportional to 1,810.02, 2,497.02 and 1,220.34

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Solution

The fourth proportional to 1,810.02, 2,497.02 and 1,220.34 is: 1,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810.02 : 2,497.02 = 1,220.34 : x
  2. Step 2: Convert to fraction form
    1,810.02/2,497.02 = 1,220.34/x
  3. Step 3: Cross multiply
    1,810.02x = 2,497.02 × 1,220.34
  4. Step 4: Simplify right side
    1,810.02x = 3,047,213.39
  5. Step 5: Solve for x
    x = 3,047,213.39/1,810.02
  6. Step 6: Final answer
    x = 1,683.52

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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.