Home / 1,371.87-2,059.56-1,358.10

Finding the Fourth Proportional to 1,371.87, 2,059.56 and 1,358.10

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Solution

The fourth proportional to 1,371.87, 2,059.56 and 1,358.10 is: 2,038.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.87 : 2,059.56 = 1,358.10 : x
  2. Step 2: Convert to fraction form
    1,371.87/2,059.56 = 1,358.10/x
  3. Step 3: Cross multiply
    1,371.87x = 2,059.56 × 1,358.10
  4. Step 4: Simplify right side
    1,371.87x = 2,797,088.44
  5. Step 5: Solve for x
    x = 2,797,088.44/1,371.87
  6. Step 6: Final answer
    x = 2,038.89

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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.