Home / 1,627.79-2,439.14-1,258.50

Finding the Fourth Proportional to 1,627.79, 2,439.14 and 1,258.50

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Solution

The fourth proportional to 1,627.79, 2,439.14 and 1,258.50 is: 1,885.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.79 : 2,439.14 = 1,258.50 : x
  2. Step 2: Convert to fraction form
    1,627.79/2,439.14 = 1,258.50/x
  3. Step 3: Cross multiply
    1,627.79x = 2,439.14 × 1,258.50
  4. Step 4: Simplify right side
    1,627.79x = 3,069,651.40
  5. Step 5: Solve for x
    x = 3,069,651.40/1,627.79
  6. Step 6: Final answer
    x = 1,885.78

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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.