Home / 3,465.48-4,782.09-2,121.85

Finding the Fourth Proportional to 3,465.48, 4,782.09 and 2,121.85

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Solution

The fourth proportional to 3,465.48, 4,782.09 and 2,121.85 is: 2,927.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.48 : 4,782.09 = 2,121.85 : x
  2. Step 2: Convert to fraction form
    3,465.48/4,782.09 = 2,121.85/x
  3. Step 3: Cross multiply
    3,465.48x = 4,782.09 × 2,121.85
  4. Step 4: Simplify right side
    3,465.48x = 10,146,852.77
  5. Step 5: Solve for x
    x = 10,146,852.77/3,465.48
  6. Step 6: Final answer
    x = 2,927.98

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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.