Home / 2,779.43-3,835.59-1,785.08

Finding the Fourth Proportional to 2,779.43, 3,835.59 and 1,785.08

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Solution

The fourth proportional to 2,779.43, 3,835.59 and 1,785.08 is: 2,463.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.43 : 3,835.59 = 1,785.08 : x
  2. Step 2: Convert to fraction form
    2,779.43/3,835.59 = 1,785.08/x
  3. Step 3: Cross multiply
    2,779.43x = 3,835.59 × 1,785.08
  4. Step 4: Simplify right side
    2,779.43x = 6,846,837.89
  5. Step 5: Solve for x
    x = 6,846,837.89/2,779.43
  6. Step 6: Final answer
    x = 2,463.40

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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.