Home / 2,779.36-3,828.84-2,337.28

Finding the Fourth Proportional to 2,779.36, 3,828.84 and 2,337.28

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Solution

The fourth proportional to 2,779.36, 3,828.84 and 2,337.28 is: 3,219.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.36 : 3,828.84 = 2,337.28 : x
  2. Step 2: Convert to fraction form
    2,779.36/3,828.84 = 2,337.28/x
  3. Step 3: Cross multiply
    2,779.36x = 3,828.84 × 2,337.28
  4. Step 4: Simplify right side
    2,779.36x = 8,949,071.16
  5. Step 5: Solve for x
    x = 8,949,071.16/2,779.36
  6. Step 6: Final answer
    x = 3,219.83

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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.