Home / 3,415.21-4,700.76-2,418.77

Finding the Fourth Proportional to 3,415.21, 4,700.76 and 2,418.77

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Solution

The fourth proportional to 3,415.21, 4,700.76 and 2,418.77 is: 3,329.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.21 : 4,700.76 = 2,418.77 : x
  2. Step 2: Convert to fraction form
    3,415.21/4,700.76 = 2,418.77/x
  3. Step 3: Cross multiply
    3,415.21x = 4,700.76 × 2,418.77
  4. Step 4: Simplify right side
    3,415.21x = 11,370,024.69
  5. Step 5: Solve for x
    x = 11,370,024.69/3,415.21
  6. Step 6: Final answer
    x = 3,329.23

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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.