Home / 3,381.74-4,666.80-1,889.60

Finding the Fourth Proportional to 3,381.74, 4,666.80 and 1,889.60

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Solution

The fourth proportional to 3,381.74, 4,666.80 and 1,889.60 is: 2,607.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.74 : 4,666.80 = 1,889.60 : x
  2. Step 2: Convert to fraction form
    3,381.74/4,666.80 = 1,889.60/x
  3. Step 3: Cross multiply
    3,381.74x = 4,666.80 × 1,889.60
  4. Step 4: Simplify right side
    3,381.74x = 8,818,385.28
  5. Step 5: Solve for x
    x = 8,818,385.28/3,381.74
  6. Step 6: Final answer
    x = 2,607.65

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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.