Home / 3,895.16-5,377.37-3,130.65

Finding the Fourth Proportional to 3,895.16, 5,377.37 and 3,130.65

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Solution

The fourth proportional to 3,895.16, 5,377.37 and 3,130.65 is: 4,321.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.16 : 5,377.37 = 3,130.65 : x
  2. Step 2: Convert to fraction form
    3,895.16/5,377.37 = 3,130.65/x
  3. Step 3: Cross multiply
    3,895.16x = 5,377.37 × 3,130.65
  4. Step 4: Simplify right side
    3,895.16x = 16,834,647.74
  5. Step 5: Solve for x
    x = 16,834,647.74/3,895.16
  6. Step 6: Final answer
    x = 4,321.95

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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.