Home / 3,285.38-4,533.95-1,869.20

Finding the Fourth Proportional to 3,285.38, 4,533.95 and 1,869.20

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Solution

The fourth proportional to 3,285.38, 4,533.95 and 1,869.20 is: 2,579.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285.38 : 4,533.95 = 1,869.20 : x
  2. Step 2: Convert to fraction form
    3,285.38/4,533.95 = 1,869.20/x
  3. Step 3: Cross multiply
    3,285.38x = 4,533.95 × 1,869.20
  4. Step 4: Simplify right side
    3,285.38x = 8,474,827.32
  5. Step 5: Solve for x
    x = 8,474,827.32/3,285.38
  6. Step 6: Final answer
    x = 2,579.56

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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.