Home / 1,729.55-2,384.74-1,396.95

Finding the Fourth Proportional to 1,729.55, 2,384.74 and 1,396.95

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Solution

The fourth proportional to 1,729.55, 2,384.74 and 1,396.95 is: 1,926.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.55 : 2,384.74 = 1,396.95 : x
  2. Step 2: Convert to fraction form
    1,729.55/2,384.74 = 1,396.95/x
  3. Step 3: Cross multiply
    1,729.55x = 2,384.74 × 1,396.95
  4. Step 4: Simplify right side
    1,729.55x = 3,331,355.35
  5. Step 5: Solve for x
    x = 3,331,355.35/1,729.55
  6. Step 6: Final answer
    x = 1,926.14

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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.