Home / 4,821.56-6,654.86-3,140.04

Finding the Fourth Proportional to 4,821.56, 6,654.86 and 3,140.04

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Solution

The fourth proportional to 4,821.56, 6,654.86 and 3,140.04 is: 4,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.56 : 6,654.86 = 3,140.04 : x
  2. Step 2: Convert to fraction form
    4,821.56/6,654.86 = 3,140.04/x
  3. Step 3: Cross multiply
    4,821.56x = 6,654.86 × 3,140.04
  4. Step 4: Simplify right side
    4,821.56x = 20,896,526.59
  5. Step 5: Solve for x
    x = 20,896,526.59/4,821.56
  6. Step 6: Final answer
    x = 4,333.98

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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.