Home / 1,934.91-2,669.20-1,225.58

Finding the Fourth Proportional to 1,934.91, 2,669.20 and 1,225.58

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Solution

The fourth proportional to 1,934.91, 2,669.20 and 1,225.58 is: 1,690.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.91 : 2,669.20 = 1,225.58 : x
  2. Step 2: Convert to fraction form
    1,934.91/2,669.20 = 1,225.58/x
  3. Step 3: Cross multiply
    1,934.91x = 2,669.20 × 1,225.58
  4. Step 4: Simplify right side
    1,934.91x = 3,271,301.73
  5. Step 5: Solve for x
    x = 3,271,301.73/1,934.91
  6. Step 6: Final answer
    x = 1,690.67

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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.