Home / 3,513.60-4,848.76-2,021.80

Finding the Fourth Proportional to 3,513.60, 4,848.76 and 2,021.80

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Solution

The fourth proportional to 3,513.60, 4,848.76 and 2,021.80 is: 2,790.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.60 : 4,848.76 = 2,021.80 : x
  2. Step 2: Convert to fraction form
    3,513.60/4,848.76 = 2,021.80/x
  3. Step 3: Cross multiply
    3,513.60x = 4,848.76 × 2,021.80
  4. Step 4: Simplify right side
    3,513.60x = 9,803,222.97
  5. Step 5: Solve for x
    x = 9,803,222.97/3,513.60
  6. Step 6: Final answer
    x = 2,790.08

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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.