Home / 1,371.07-2,056.26-538.30

Finding the Fourth Proportional to 1,371.07, 2,056.26 and 538.30

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Solution

The fourth proportional to 1,371.07, 2,056.26 and 538.30 is: 807.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.07 : 2,056.26 = 538.30 : x
  2. Step 2: Convert to fraction form
    1,371.07/2,056.26 = 538.30/x
  3. Step 3: Cross multiply
    1,371.07x = 2,056.26 × 538.30
  4. Step 4: Simplify right side
    1,371.07x = 1,106,890.98
  5. Step 5: Solve for x
    x = 1,106,890.98/1,371.07
  6. Step 6: Final answer
    x = 807.32

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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.