Home / 1,680.93-2,319.73-934.99

Finding the Fourth Proportional to 1,680.93, 2,319.73 and 934.99

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Solution

The fourth proportional to 1,680.93, 2,319.73 and 934.99 is: 1,290.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.93 : 2,319.73 = 934.99 : x
  2. Step 2: Convert to fraction form
    1,680.93/2,319.73 = 934.99/x
  3. Step 3: Cross multiply
    1,680.93x = 2,319.73 × 934.99
  4. Step 4: Simplify right side
    1,680.93x = 2,168,924.35
  5. Step 5: Solve for x
    x = 2,168,924.35/1,680.93
  6. Step 6: Final answer
    x = 1,290.31

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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.