Home / 3,415.06-4,710.99-2,155.66

Finding the Fourth Proportional to 3,415.06, 4,710.99 and 2,155.66

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Solution

The fourth proportional to 3,415.06, 4,710.99 and 2,155.66 is: 2,973.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.06 : 4,710.99 = 2,155.66 : x
  2. Step 2: Convert to fraction form
    3,415.06/4,710.99 = 2,155.66/x
  3. Step 3: Cross multiply
    3,415.06x = 4,710.99 × 2,155.66
  4. Step 4: Simplify right side
    3,415.06x = 10,155,286.32
  5. Step 5: Solve for x
    x = 10,155,286.32/3,415.06
  6. Step 6: Final answer
    x = 2,973.68

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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.