Home / 7,817.85-10,788.62-4,281.03

Finding the Fourth Proportional to 7,817.85, 10,788.62 and 4,281.03

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Solution

The fourth proportional to 7,817.85, 10,788.62 and 4,281.03 is: 5,907.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.85 : 10,788.62 = 4,281.03 : x
  2. Step 2: Convert to fraction form
    7,817.85/10,788.62 = 4,281.03/x
  3. Step 3: Cross multiply
    7,817.85x = 10,788.62 × 4,281.03
  4. Step 4: Simplify right side
    7,817.85x = 46,186,384.47
  5. Step 5: Solve for x
    x = 46,186,384.47/7,817.85
  6. Step 6: Final answer
    x = 5,907.81

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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.