Home / 3,390.08-4,677.90-1,897.94

Finding the Fourth Proportional to 3,390.08, 4,677.90 and 1,897.94

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Solution

The fourth proportional to 3,390.08, 4,677.90 and 1,897.94 is: 2,618.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.08 : 4,677.90 = 1,897.94 : x
  2. Step 2: Convert to fraction form
    3,390.08/4,677.90 = 1,897.94/x
  3. Step 3: Cross multiply
    3,390.08x = 4,677.90 × 1,897.94
  4. Step 4: Simplify right side
    3,390.08x = 8,878,373.53
  5. Step 5: Solve for x
    x = 8,878,373.53/3,390.08
  6. Step 6: Final answer
    x = 2,618.93

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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.