Home / 2,421.32-3,342.66-1,490.36

Finding the Fourth Proportional to 2,421.32, 3,342.66 and 1,490.36

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Solution

The fourth proportional to 2,421.32, 3,342.66 and 1,490.36 is: 2,057.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.32 : 3,342.66 = 1,490.36 : x
  2. Step 2: Convert to fraction form
    2,421.32/3,342.66 = 1,490.36/x
  3. Step 3: Cross multiply
    2,421.32x = 3,342.66 × 1,490.36
  4. Step 4: Simplify right side
    2,421.32x = 4,981,766.76
  5. Step 5: Solve for x
    x = 4,981,766.76/2,421.32
  6. Step 6: Final answer
    x = 2,057.46

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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.