Home / 7,070.65-9,757.41-4,086.47

Finding the Fourth Proportional to 7,070.65, 9,757.41 and 4,086.47

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Solution

The fourth proportional to 7,070.65, 9,757.41 and 4,086.47 is: 5,639.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.65 : 9,757.41 = 4,086.47 : x
  2. Step 2: Convert to fraction form
    7,070.65/9,757.41 = 4,086.47/x
  3. Step 3: Cross multiply
    7,070.65x = 9,757.41 × 4,086.47
  4. Step 4: Simplify right side
    7,070.65x = 39,873,363.24
  5. Step 5: Solve for x
    x = 39,873,363.24/7,070.65
  6. Step 6: Final answer
    x = 5,639.28

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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.