Home / 7,384.47-11,075.67-2,119.92

Finding the Fourth Proportional to 7,384.47, 11,075.67 and 2,119.92

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Solution

The fourth proportional to 7,384.47, 11,075.67 and 2,119.92 is: 3,179.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,384.47 : 11,075.67 = 2,119.92 : x
  2. Step 2: Convert to fraction form
    7,384.47/11,075.67 = 2,119.92/x
  3. Step 3: Cross multiply
    7,384.47x = 11,075.67 × 2,119.92
  4. Step 4: Simplify right side
    7,384.47x = 23,479,534.35
  5. Step 5: Solve for x
    x = 23,479,534.35/7,384.47
  6. Step 6: Final answer
    x = 3,179.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.