Home / 2,390.38-3,298.19-2,075.09

Finding the Fourth Proportional to 2,390.38, 3,298.19 and 2,075.09

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Solution

The fourth proportional to 2,390.38, 3,298.19 and 2,075.09 is: 2,863.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.38 : 3,298.19 = 2,075.09 : x
  2. Step 2: Convert to fraction form
    2,390.38/3,298.19 = 2,075.09/x
  3. Step 3: Cross multiply
    2,390.38x = 3,298.19 × 2,075.09
  4. Step 4: Simplify right side
    2,390.38x = 6,844,014.22
  5. Step 5: Solve for x
    x = 6,844,014.22/2,390.38
  6. Step 6: Final answer
    x = 2,863.15

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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.