Home / 1,621.93-2,433.42-526.30

Finding the Fourth Proportional to 1,621.93, 2,433.42 and 526.30

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Solution

The fourth proportional to 1,621.93, 2,433.42 and 526.30 is: 789.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.93 : 2,433.42 = 526.30 : x
  2. Step 2: Convert to fraction form
    1,621.93/2,433.42 = 526.30/x
  3. Step 3: Cross multiply
    1,621.93x = 2,433.42 × 526.30
  4. Step 4: Simplify right side
    1,621.93x = 1,280,708.95
  5. Step 5: Solve for x
    x = 1,280,708.95/1,621.93
  6. Step 6: Final answer
    x = 789.62

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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.