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Finding the Fourth Proportional to 3,390.03, 4,678.02 and 1,897.94

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Solution

The fourth proportional to 3,390.03, 4,678.02 and 1,897.94 is: 2,619.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.03 : 4,678.02 = 1,897.94 : x
  2. Step 2: Convert to fraction form
    3,390.03/4,678.02 = 1,897.94/x
  3. Step 3: Cross multiply
    3,390.03x = 4,678.02 × 1,897.94
  4. Step 4: Simplify right side
    3,390.03x = 8,878,577.89
  5. Step 5: Solve for x
    x = 8,878,577.89/3,390.03
  6. Step 6: Final answer
    x = 2,619.03

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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.