Home / 3,315.60-4,573.70-2,038.78

Finding the Fourth Proportional to 3,315.60, 4,573.70 and 2,038.78

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Solution

The fourth proportional to 3,315.60, 4,573.70 and 2,038.78 is: 2,812.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.60 : 4,573.70 = 2,038.78 : x
  2. Step 2: Convert to fraction form
    3,315.60/4,573.70 = 2,038.78/x
  3. Step 3: Cross multiply
    3,315.60x = 4,573.70 × 2,038.78
  4. Step 4: Simplify right side
    3,315.60x = 9,324,768.09
  5. Step 5: Solve for x
    x = 9,324,768.09/3,315.60
  6. Step 6: Final answer
    x = 2,812.39

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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.