Home / 3,388.95-4,676.84-1,897.12

Finding the Fourth Proportional to 3,388.95, 4,676.84 and 1,897.12

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Solution

The fourth proportional to 3,388.95, 4,676.84 and 1,897.12 is: 2,618.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.95 : 4,676.84 = 1,897.12 : x
  2. Step 2: Convert to fraction form
    3,388.95/4,676.84 = 1,897.12/x
  3. Step 3: Cross multiply
    3,388.95x = 4,676.84 × 1,897.12
  4. Step 4: Simplify right side
    3,388.95x = 8,872,526.70
  5. Step 5: Solve for x
    x = 8,872,526.70/3,388.95
  6. Step 6: Final answer
    x = 2,618.08

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1.5x scale

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.