Home / 2,095.40-3,143.54-1,315.67

Finding the Fourth Proportional to 2,095.40, 3,143.54 and 1,315.67

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Solution

The fourth proportional to 2,095.40, 3,143.54 and 1,315.67 is: 1,973.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.40 : 3,143.54 = 1,315.67 : x
  2. Step 2: Convert to fraction form
    2,095.40/3,143.54 = 1,315.67/x
  3. Step 3: Cross multiply
    2,095.40x = 3,143.54 × 1,315.67
  4. Step 4: Simplify right side
    2,095.40x = 4,135,848.84
  5. Step 5: Solve for x
    x = 4,135,848.84/2,095.40
  6. Step 6: Final answer
    x = 1,973.77

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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.