Home / 7,075.08-9,763.77-3,931.44

Finding the Fourth Proportional to 7,075.08, 9,763.77 and 3,931.44

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Solution

The fourth proportional to 7,075.08, 9,763.77 and 3,931.44 is: 5,425.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.08 : 9,763.77 = 3,931.44 : x
  2. Step 2: Convert to fraction form
    7,075.08/9,763.77 = 3,931.44/x
  3. Step 3: Cross multiply
    7,075.08x = 9,763.77 × 3,931.44
  4. Step 4: Simplify right side
    7,075.08x = 38,385,675.93
  5. Step 5: Solve for x
    x = 38,385,675.93/7,075.08
  6. Step 6: Final answer
    x = 5,425.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.