Home / 3,315.40-4,575.14-1,823.46

Finding the Fourth Proportional to 3,315.40, 4,575.14 and 1,823.46

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Solution

The fourth proportional to 3,315.40, 4,575.14 and 1,823.46 is: 2,516.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.40 : 4,575.14 = 1,823.46 : x
  2. Step 2: Convert to fraction form
    3,315.40/4,575.14 = 1,823.46/x
  3. Step 3: Cross multiply
    3,315.40x = 4,575.14 × 1,823.46
  4. Step 4: Simplify right side
    3,315.40x = 8,342,584.78
  5. Step 5: Solve for x
    x = 8,342,584.78/3,315.40
  6. Step 6: Final answer
    x = 2,516.31

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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.