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Finding the Fourth Proportional to 2,075.45, 3,113.16 and 536.45

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Solution

The fourth proportional to 2,075.45, 3,113.16 and 536.45 is: 804.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.45 : 3,113.16 = 536.45 : x
  2. Step 2: Convert to fraction form
    2,075.45/3,113.16 = 536.45/x
  3. Step 3: Cross multiply
    2,075.45x = 3,113.16 × 536.45
  4. Step 4: Simplify right side
    2,075.45x = 1,670,039.12
  5. Step 5: Solve for x
    x = 1,670,039.12/2,075.45
  6. Step 6: Final answer
    x = 804.67

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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.