Home / 7,829.87-10,802.21-4,997.35

Finding the Fourth Proportional to 7,829.87, 10,802.21 and 4,997.35

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Solution

The fourth proportional to 7,829.87, 10,802.21 and 4,997.35 is: 6,894.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,829.87 : 10,802.21 = 4,997.35 : x
  2. Step 2: Convert to fraction form
    7,829.87/10,802.21 = 4,997.35/x
  3. Step 3: Cross multiply
    7,829.87x = 10,802.21 × 4,997.35
  4. Step 4: Simplify right side
    7,829.87x = 53,982,409.63
  5. Step 5: Solve for x
    x = 53,982,409.63/7,829.87
  6. Step 6: Final answer
    x = 6,894.42

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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.