Home / 1,960.34-2,701.36-1,399.23

Finding the Fourth Proportional to 1,960.34, 2,701.36 and 1,399.23

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Solution

The fourth proportional to 1,960.34, 2,701.36 and 1,399.23 is: 1,928.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.34 : 2,701.36 = 1,399.23 : x
  2. Step 2: Convert to fraction form
    1,960.34/2,701.36 = 1,399.23/x
  3. Step 3: Cross multiply
    1,960.34x = 2,701.36 × 1,399.23
  4. Step 4: Simplify right side
    1,960.34x = 3,779,803.45
  5. Step 5: Solve for x
    x = 3,779,803.45/1,960.34
  6. Step 6: Final answer
    x = 1,928.14

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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.