Home / 2,390.36-3,298.70-1,342.42

Finding the Fourth Proportional to 2,390.36, 3,298.70 and 1,342.42

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Solution

The fourth proportional to 2,390.36, 3,298.70 and 1,342.42 is: 1,852.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.36 : 3,298.70 = 1,342.42 : x
  2. Step 2: Convert to fraction form
    2,390.36/3,298.70 = 1,342.42/x
  3. Step 3: Cross multiply
    2,390.36x = 3,298.70 × 1,342.42
  4. Step 4: Simplify right side
    2,390.36x = 4,428,235.96
  5. Step 5: Solve for x
    x = 4,428,235.96/2,390.36
  6. Step 6: Final answer
    x = 1,852.54

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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.