Home / 1,330.83-1,836.93-888.65

Finding the Fourth Proportional to 1,330.83, 1,836.93 and 888.65

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Solution

The fourth proportional to 1,330.83, 1,836.93 and 888.65 is: 1,226.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.83 : 1,836.93 = 888.65 : x
  2. Step 2: Convert to fraction form
    1,330.83/1,836.93 = 888.65/x
  3. Step 3: Cross multiply
    1,330.83x = 1,836.93 × 888.65
  4. Step 4: Simplify right side
    1,330.83x = 1,632,378.72
  5. Step 5: Solve for x
    x = 1,632,378.72/1,330.83
  6. Step 6: Final answer
    x = 1,226.59

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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.