Home / 1,371.15-2,055.90-526.47

Finding the Fourth Proportional to 1,371.15, 2,055.90 and 526.47

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Solution

The fourth proportional to 1,371.15, 2,055.90 and 526.47 is: 789.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371.15 : 2,055.90 = 526.47 : x
  2. Step 2: Convert to fraction form
    1,371.15/2,055.90 = 526.47/x
  3. Step 3: Cross multiply
    1,371.15x = 2,055.90 × 526.47
  4. Step 4: Simplify right side
    1,371.15x = 1,082,369.67
  5. Step 5: Solve for x
    x = 1,082,369.67/1,371.15
  6. Step 6: Final answer
    x = 789.39

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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.