Home / 7,085.64-9,779.83-4,103.22

Finding the Fourth Proportional to 7,085.64, 9,779.83 and 4,103.22

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Solution

The fourth proportional to 7,085.64, 9,779.83 and 4,103.22 is: 5,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.64 : 9,779.83 = 4,103.22 : x
  2. Step 2: Convert to fraction form
    7,085.64/9,779.83 = 4,103.22/x
  3. Step 3: Cross multiply
    7,085.64x = 9,779.83 × 4,103.22
  4. Step 4: Simplify right side
    7,085.64x = 40,128,794.05
  5. Step 5: Solve for x
    x = 40,128,794.05/7,085.64
  6. Step 6: Final answer
    x = 5,663.40

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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.