Home / 7,075.22-9,763.74-3,931.34

Finding the Fourth Proportional to 7,075.22, 9,763.74 and 3,931.34

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Solution

The fourth proportional to 7,075.22, 9,763.74 and 3,931.34 is: 5,425.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.22 : 9,763.74 = 3,931.34 : x
  2. Step 2: Convert to fraction form
    7,075.22/9,763.74 = 3,931.34/x
  3. Step 3: Cross multiply
    7,075.22x = 9,763.74 × 3,931.34
  4. Step 4: Simplify right side
    7,075.22x = 38,384,532.79
  5. Step 5: Solve for x
    x = 38,384,532.79/7,075.22
  6. Step 6: Final answer
    x = 5,425.21

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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.