Home / 4,021.60-6,032.40-1,389.10

Finding the Fourth Proportional to 4,021.60, 6,032.40 and 1,389.10

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Solution

The fourth proportional to 4,021.60, 6,032.40 and 1,389.10 is: 2,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.60 : 6,032.40 = 1,389.10 : x
  2. Step 2: Convert to fraction form
    4,021.60/6,032.40 = 1,389.10/x
  3. Step 3: Cross multiply
    4,021.60x = 6,032.40 × 1,389.10
  4. Step 4: Simplify right side
    4,021.60x = 8,379,606.84
  5. Step 5: Solve for x
    x = 8,379,606.84/4,021.60
  6. Step 6: Final answer
    x = 2,083.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.