Home / 3,779.90-5,205.51-2,730.30

Finding the Fourth Proportional to 3,779.90, 5,205.51 and 2,730.30

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Solution

The fourth proportional to 3,779.90, 5,205.51 and 2,730.30 is: 3,760.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.90 : 5,205.51 = 2,730.30 : x
  2. Step 2: Convert to fraction form
    3,779.90/5,205.51 = 2,730.30/x
  3. Step 3: Cross multiply
    3,779.90x = 5,205.51 × 2,730.30
  4. Step 4: Simplify right side
    3,779.90x = 14,212,603.95
  5. Step 5: Solve for x
    x = 14,212,603.95/3,779.90
  6. Step 6: Final answer
    x = 3,760.05

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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.