Home / 3,389.28-4,677.58-1,897.60

Finding the Fourth Proportional to 3,389.28, 4,677.58 and 1,897.60

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Solution

The fourth proportional to 3,389.28, 4,677.58 and 1,897.60 is: 2,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.28 : 4,677.58 = 1,897.60 : x
  2. Step 2: Convert to fraction form
    3,389.28/4,677.58 = 1,897.60/x
  3. Step 3: Cross multiply
    3,389.28x = 4,677.58 × 1,897.60
  4. Step 4: Simplify right side
    3,389.28x = 8,876,175.81
  5. Step 5: Solve for x
    x = 8,876,175.81/3,389.28
  6. Step 6: Final answer
    x = 2,618.90

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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.