Home / 3,063.52-4,221.84-2,130.40

Finding the Fourth Proportional to 3,063.52, 4,221.84 and 2,130.40

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Solution

The fourth proportional to 3,063.52, 4,221.84 and 2,130.40 is: 2,935.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,063.52 : 4,221.84 = 2,130.40 : x
  2. Step 2: Convert to fraction form
    3,063.52/4,221.84 = 2,130.40/x
  3. Step 3: Cross multiply
    3,063.52x = 4,221.84 × 2,130.40
  4. Step 4: Simplify right side
    3,063.52x = 8,994,207.94
  5. Step 5: Solve for x
    x = 8,994,207.94/3,063.52
  6. Step 6: Final answer
    x = 2,935.91

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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.