Home / 7,827.62-10,802.79-4,291.50

Finding the Fourth Proportional to 7,827.62, 10,802.79 and 4,291.50

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Solution

The fourth proportional to 7,827.62, 10,802.79 and 4,291.50 is: 5,922.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,827.62 : 10,802.79 = 4,291.50 : x
  2. Step 2: Convert to fraction form
    7,827.62/10,802.79 = 4,291.50/x
  3. Step 3: Cross multiply
    7,827.62x = 10,802.79 × 4,291.50
  4. Step 4: Simplify right side
    7,827.62x = 46,360,173.29
  5. Step 5: Solve for x
    x = 46,360,173.29/7,827.62
  6. Step 6: Final answer
    x = 5,922.64

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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.