Home / 2,368.32-3,549.75-1,328.79

Finding the Fourth Proportional to 2,368.32, 3,549.75 and 1,328.79

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Solution

The fourth proportional to 2,368.32, 3,549.75 and 1,328.79 is: 1,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,368.32 : 3,549.75 = 1,328.79 : x
  2. Step 2: Convert to fraction form
    2,368.32/3,549.75 = 1,328.79/x
  3. Step 3: Cross multiply
    2,368.32x = 3,549.75 × 1,328.79
  4. Step 4: Simplify right side
    2,368.32x = 4,716,872.30
  5. Step 5: Solve for x
    x = 4,716,872.30/2,368.32
  6. Step 6: Final answer
    x = 1,991.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.