Home / 3,783.10-5,220.33-2,788.93

Finding the Fourth Proportional to 3,783.10, 5,220.33 and 2,788.93

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Solution

The fourth proportional to 3,783.10, 5,220.33 and 2,788.93 is: 3,848.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.10 : 5,220.33 = 2,788.93 : x
  2. Step 2: Convert to fraction form
    3,783.10/5,220.33 = 2,788.93/x
  3. Step 3: Cross multiply
    3,783.10x = 5,220.33 × 2,788.93
  4. Step 4: Simplify right side
    3,783.10x = 14,559,108.85
  5. Step 5: Solve for x
    x = 14,559,108.85/3,783.10
  6. Step 6: Final answer
    x = 3,848.46

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Double scale
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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.