Home / 4,989.10-6,885.42-2,864.91

Finding the Fourth Proportional to 4,989.10, 6,885.42 and 2,864.91

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Solution

The fourth proportional to 4,989.10, 6,885.42 and 2,864.91 is: 3,953.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.10 : 6,885.42 = 2,864.91 : x
  2. Step 2: Convert to fraction form
    4,989.10/6,885.42 = 2,864.91/x
  3. Step 3: Cross multiply
    4,989.10x = 6,885.42 × 2,864.91
  4. Step 4: Simplify right side
    4,989.10x = 19,726,093.02
  5. Step 5: Solve for x
    x = 19,726,093.02/4,989.10
  6. Step 6: Final answer
    x = 3,953.84

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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.