Home / 1,639.93-2,258.27-1,465.21

Finding the Fourth Proportional to 1,639.93, 2,258.27 and 1,465.21

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Solution

The fourth proportional to 1,639.93, 2,258.27 and 1,465.21 is: 2,017.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.93 : 2,258.27 = 1,465.21 : x
  2. Step 2: Convert to fraction form
    1,639.93/2,258.27 = 1,465.21/x
  3. Step 3: Cross multiply
    1,639.93x = 2,258.27 × 1,465.21
  4. Step 4: Simplify right side
    1,639.93x = 3,308,832.46
  5. Step 5: Solve for x
    x = 3,308,832.46/1,639.93
  6. Step 6: Final answer
    x = 2,017.67

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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.