Home / 1,330.40-1,994.06-1,176.64

Finding the Fourth Proportional to 1,330.40, 1,994.06 and 1,176.64

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Solution

The fourth proportional to 1,330.40, 1,994.06 and 1,176.64 is: 1,763.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.40 : 1,994.06 = 1,176.64 : x
  2. Step 2: Convert to fraction form
    1,330.40/1,994.06 = 1,176.64/x
  3. Step 3: Cross multiply
    1,330.40x = 1,994.06 × 1,176.64
  4. Step 4: Simplify right side
    1,330.40x = 2,346,288.71
  5. Step 5: Solve for x
    x = 2,346,288.71/1,330.40
  6. Step 6: Final answer
    x = 1,763.59

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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.