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Finding the Fourth Proportional to 3,779.66, 5,218.32 and 2,435.77

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Solution

The fourth proportional to 3,779.66, 5,218.32 and 2,435.77 is: 3,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.66 : 5,218.32 = 2,435.77 : x
  2. Step 2: Convert to fraction form
    3,779.66/5,218.32 = 2,435.77/x
  3. Step 3: Cross multiply
    3,779.66x = 5,218.32 × 2,435.77
  4. Step 4: Simplify right side
    3,779.66x = 12,710,642.96
  5. Step 5: Solve for x
    x = 12,710,642.96/3,779.66
  6. Step 6: Final answer
    x = 3,362.90

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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.