Home / 3,485.70-5,228.55-3,075.30

Finding the Fourth Proportional to 3,485.70, 5,228.55 and 3,075.30

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Solution

The fourth proportional to 3,485.70, 5,228.55 and 3,075.30 is: 4,612.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.70 : 5,228.55 = 3,075.30 : x
  2. Step 2: Convert to fraction form
    3,485.70/5,228.55 = 3,075.30/x
  3. Step 3: Cross multiply
    3,485.70x = 5,228.55 × 3,075.30
  4. Step 4: Simplify right side
    3,485.70x = 16,079,359.82
  5. Step 5: Solve for x
    x = 16,079,359.82/3,485.70
  6. Step 6: Final answer
    x = 4,612.95

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.