Home / 7,828.08-10,802.46-4,291.21

Finding the Fourth Proportional to 7,828.08, 10,802.46 and 4,291.21

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Solution

The fourth proportional to 7,828.08, 10,802.46 and 4,291.21 is: 5,921.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.08 : 10,802.46 = 4,291.21 : x
  2. Step 2: Convert to fraction form
    7,828.08/10,802.46 = 4,291.21/x
  3. Step 3: Cross multiply
    7,828.08x = 10,802.46 × 4,291.21
  4. Step 4: Simplify right side
    7,828.08x = 46,355,624.38
  5. Step 5: Solve for x
    x = 46,355,624.38/7,828.08
  6. Step 6: Final answer
    x = 5,921.71

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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.