Home / 3,075.38-4,243.02-1,816.49

Finding the Fourth Proportional to 3,075.38, 4,243.02 and 1,816.49

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Solution

The fourth proportional to 3,075.38, 4,243.02 and 1,816.49 is: 2,506.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.38 : 4,243.02 = 1,816.49 : x
  2. Step 2: Convert to fraction form
    3,075.38/4,243.02 = 1,816.49/x
  3. Step 3: Cross multiply
    3,075.38x = 4,243.02 × 1,816.49
  4. Step 4: Simplify right side
    3,075.38x = 7,707,382.18
  5. Step 5: Solve for x
    x = 7,707,382.18/3,075.38
  6. Step 6: Final answer
    x = 2,506.16

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Half scale
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Double scale
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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.