Home / 7,386.40-11,075.82-2,191.60

Finding the Fourth Proportional to 7,386.40, 11,075.82 and 2,191.60

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Solution

The fourth proportional to 7,386.40, 11,075.82 and 2,191.60 is: 3,286.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,386.40 : 11,075.82 = 2,191.60 : x
  2. Step 2: Convert to fraction form
    7,386.40/11,075.82 = 2,191.60/x
  3. Step 3: Cross multiply
    7,386.40x = 11,075.82 × 2,191.60
  4. Step 4: Simplify right side
    7,386.40x = 24,273,767.11
  5. Step 5: Solve for x
    x = 24,273,767.11/7,386.40
  6. Step 6: Final answer
    x = 3,286.28

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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.