Home / 3,415.04-4,712.20-1,922.76

Finding the Fourth Proportional to 3,415.04, 4,712.20 and 1,922.76

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Solution

The fourth proportional to 3,415.04, 4,712.20 and 1,922.76 is: 2,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.04 : 4,712.20 = 1,922.76 : x
  2. Step 2: Convert to fraction form
    3,415.04/4,712.20 = 1,922.76/x
  3. Step 3: Cross multiply
    3,415.04x = 4,712.20 × 1,922.76
  4. Step 4: Simplify right side
    3,415.04x = 9,060,429.67
  5. Step 5: Solve for x
    x = 9,060,429.67/3,415.04
  6. Step 6: Final answer
    x = 2,653.10

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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.