Home / 3,484.84-4,810.02-2,157.79

Finding the Fourth Proportional to 3,484.84, 4,810.02 and 2,157.79

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Solution

The fourth proportional to 3,484.84, 4,810.02 and 2,157.79 is: 2,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,484.84 : 4,810.02 = 2,157.79 : x
  2. Step 2: Convert to fraction form
    3,484.84/4,810.02 = 2,157.79/x
  3. Step 3: Cross multiply
    3,484.84x = 4,810.02 × 2,157.79
  4. Step 4: Simplify right side
    3,484.84x = 10,379,013.06
  5. Step 5: Solve for x
    x = 10,379,013.06/3,484.84
  6. Step 6: Final answer
    x = 2,978.33

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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.