Home / 1,384.08-2,074.32-1,207.50

Finding the Fourth Proportional to 1,384.08, 2,074.32 and 1,207.50

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Solution

The fourth proportional to 1,384.08, 2,074.32 and 1,207.50 is: 1,809.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384.08 : 2,074.32 = 1,207.50 : x
  2. Step 2: Convert to fraction form
    1,384.08/2,074.32 = 1,207.50/x
  3. Step 3: Cross multiply
    1,384.08x = 2,074.32 × 1,207.50
  4. Step 4: Simplify right side
    1,384.08x = 2,504,741.40
  5. Step 5: Solve for x
    x = 2,504,741.40/1,384.08
  6. Step 6: Final answer
    x = 1,809.68

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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.