Home / 2,910.47-4,021.16-2,030.20

Finding the Fourth Proportional to 2,910.47, 4,021.16 and 2,030.20

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Solution

The fourth proportional to 2,910.47, 4,021.16 and 2,030.20 is: 2,804.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.47 : 4,021.16 = 2,030.20 : x
  2. Step 2: Convert to fraction form
    2,910.47/4,021.16 = 2,030.20/x
  3. Step 3: Cross multiply
    2,910.47x = 4,021.16 × 2,030.20
  4. Step 4: Simplify right side
    2,910.47x = 8,163,738.83
  5. Step 5: Solve for x
    x = 8,163,738.83/2,910.47
  6. Step 6: Final answer
    x = 2,804.96

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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.