Home / 7,075.72-10,615.26-2,145.64

Finding the Fourth Proportional to 7,075.72, 10,615.26 and 2,145.64

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Solution

The fourth proportional to 7,075.72, 10,615.26 and 2,145.64 is: 3,218.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.72 : 10,615.26 = 2,145.64 : x
  2. Step 2: Convert to fraction form
    7,075.72/10,615.26 = 2,145.64/x
  3. Step 3: Cross multiply
    7,075.72x = 10,615.26 × 2,145.64
  4. Step 4: Simplify right side
    7,075.72x = 22,776,526.47
  5. Step 5: Solve for x
    x = 22,776,526.47/7,075.72
  6. Step 6: Final answer
    x = 3,218.97

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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.