Home / 2,159.46-2,979.18-1,373.36

Finding the Fourth Proportional to 2,159.46, 2,979.18 and 1,373.36

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Solution

The fourth proportional to 2,159.46, 2,979.18 and 1,373.36 is: 1,894.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159.46 : 2,979.18 = 1,373.36 : x
  2. Step 2: Convert to fraction form
    2,159.46/2,979.18 = 1,373.36/x
  3. Step 3: Cross multiply
    2,159.46x = 2,979.18 × 1,373.36
  4. Step 4: Simplify right side
    2,159.46x = 4,091,471.75
  5. Step 5: Solve for x
    x = 4,091,471.75/2,159.46
  6. Step 6: Final answer
    x = 1,894.67

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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.