Home / 7,070.63-9,759.20-4,086.02

Finding the Fourth Proportional to 7,070.63, 9,759.20 and 4,086.02

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Solution

The fourth proportional to 7,070.63, 9,759.20 and 4,086.02 is: 5,639.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.63 : 9,759.20 = 4,086.02 : x
  2. Step 2: Convert to fraction form
    7,070.63/9,759.20 = 4,086.02/x
  3. Step 3: Cross multiply
    7,070.63x = 9,759.20 × 4,086.02
  4. Step 4: Simplify right side
    7,070.63x = 39,876,290.35
  5. Step 5: Solve for x
    x = 39,876,290.35/7,070.63
  6. Step 6: Final answer
    x = 5,639.71

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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.