Home / 5,075.68-7,615.16-2,156.44

Finding the Fourth Proportional to 5,075.68, 7,615.16 and 2,156.44

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Solution

The fourth proportional to 5,075.68, 7,615.16 and 2,156.44 is: 3,235.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.68 : 7,615.16 = 2,156.44 : x
  2. Step 2: Convert to fraction form
    5,075.68/7,615.16 = 2,156.44/x
  3. Step 3: Cross multiply
    5,075.68x = 7,615.16 × 2,156.44
  4. Step 4: Simplify right side
    5,075.68x = 16,421,635.63
  5. Step 5: Solve for x
    x = 16,421,635.63/5,075.68
  6. Step 6: Final answer
    x = 3,235.36

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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.