Home / 2,390.24-3,298.28-1,327.79

Finding the Fourth Proportional to 2,390.24, 3,298.28 and 1,327.79

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Solution

The fourth proportional to 2,390.24, 3,298.28 and 1,327.79 is: 1,832.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.24 : 3,298.28 = 1,327.79 : x
  2. Step 2: Convert to fraction form
    2,390.24/3,298.28 = 1,327.79/x
  3. Step 3: Cross multiply
    2,390.24x = 3,298.28 × 1,327.79
  4. Step 4: Simplify right side
    2,390.24x = 4,379,424.81
  5. Step 5: Solve for x
    x = 4,379,424.81/2,390.24
  6. Step 6: Final answer
    x = 1,832.21

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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.