Home / 1,680.87-2,521.32-948.93

Finding the Fourth Proportional to 1,680.87, 2,521.32 and 948.93

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Solution

The fourth proportional to 1,680.87, 2,521.32 and 948.93 is: 1,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.87 : 2,521.32 = 948.93 : x
  2. Step 2: Convert to fraction form
    1,680.87/2,521.32 = 948.93/x
  3. Step 3: Cross multiply
    1,680.87x = 2,521.32 × 948.93
  4. Step 4: Simplify right side
    1,680.87x = 2,392,556.19
  5. Step 5: Solve for x
    x = 2,392,556.19/1,680.87
  6. Step 6: Final answer
    x = 1,423.40

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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.