Home / 2,964.30-4,089.84-1,916.94

Finding the Fourth Proportional to 2,964.30, 4,089.84 and 1,916.94

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Solution

The fourth proportional to 2,964.30, 4,089.84 and 1,916.94 is: 2,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.30 : 4,089.84 = 1,916.94 : x
  2. Step 2: Convert to fraction form
    2,964.30/4,089.84 = 1,916.94/x
  3. Step 3: Cross multiply
    2,964.30x = 4,089.84 × 1,916.94
  4. Step 4: Simplify right side
    2,964.30x = 7,839,977.89
  5. Step 5: Solve for x
    x = 7,839,977.89/2,964.30
  6. Step 6: Final answer
    x = 2,644.80

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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.