Home / 1,349.15-2,021.90-526.95

Finding the Fourth Proportional to 1,349.15, 2,021.90 and 526.95

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Solution

The fourth proportional to 1,349.15, 2,021.90 and 526.95 is: 789.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.15 : 2,021.90 = 526.95 : x
  2. Step 2: Convert to fraction form
    1,349.15/2,021.90 = 526.95/x
  3. Step 3: Cross multiply
    1,349.15x = 2,021.90 × 526.95
  4. Step 4: Simplify right side
    1,349.15x = 1,065,437.57
  5. Step 5: Solve for x
    x = 1,065,437.57/1,349.15
  6. Step 6: Final answer
    x = 789.71

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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.