Home / 4,756.21-7,130.67-2,908.20

Finding the Fourth Proportional to 4,756.21, 7,130.67 and 2,908.20

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Solution

The fourth proportional to 4,756.21, 7,130.67 and 2,908.20 is: 4,360.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,756.21 : 7,130.67 = 2,908.20 : x
  2. Step 2: Convert to fraction form
    4,756.21/7,130.67 = 2,908.20/x
  3. Step 3: Cross multiply
    4,756.21x = 7,130.67 × 2,908.20
  4. Step 4: Simplify right side
    4,756.21x = 20,737,414.49
  5. Step 5: Solve for x
    x = 20,737,414.49/4,756.21
  6. Step 6: Final answer
    x = 4,360.07

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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.