Home / 3,535.41-4,878.45-2,118.93

Finding the Fourth Proportional to 3,535.41, 4,878.45 and 2,118.93

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Solution

The fourth proportional to 3,535.41, 4,878.45 and 2,118.93 is: 2,923.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,535.41 : 4,878.45 = 2,118.93 : x
  2. Step 2: Convert to fraction form
    3,535.41/4,878.45 = 2,118.93/x
  3. Step 3: Cross multiply
    3,535.41x = 4,878.45 × 2,118.93
  4. Step 4: Simplify right side
    3,535.41x = 10,337,069.67
  5. Step 5: Solve for x
    x = 10,337,069.67/3,535.41
  6. Step 6: Final answer
    x = 2,923.87

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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.