Home / 7,821.87-10,794.36-4,285.10

Finding the Fourth Proportional to 7,821.87, 10,794.36 and 4,285.10

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Solution

The fourth proportional to 7,821.87, 10,794.36 and 4,285.10 is: 5,913.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.87 : 10,794.36 = 4,285.10 : x
  2. Step 2: Convert to fraction form
    7,821.87/10,794.36 = 4,285.10/x
  3. Step 3: Cross multiply
    7,821.87x = 10,794.36 × 4,285.10
  4. Step 4: Simplify right side
    7,821.87x = 46,254,955.09
  5. Step 5: Solve for x
    x = 46,254,955.09/7,821.87
  6. Step 6: Final answer
    x = 5,913.54

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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.