Home / 2,163.57-2,977.95-1,915.89

Finding the Fourth Proportional to 2,163.57, 2,977.95 and 1,915.89

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Solution

The fourth proportional to 2,163.57, 2,977.95 and 1,915.89 is: 2,637.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.57 : 2,977.95 = 1,915.89 : x
  2. Step 2: Convert to fraction form
    2,163.57/2,977.95 = 1,915.89/x
  3. Step 3: Cross multiply
    2,163.57x = 2,977.95 × 1,915.89
  4. Step 4: Simplify right side
    2,163.57x = 5,705,424.63
  5. Step 5: Solve for x
    x = 5,705,424.63/2,163.57
  6. Step 6: Final answer
    x = 2,637.04

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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.