Home / 1,451.08-2,176.09-526.40

Finding the Fourth Proportional to 1,451.08, 2,176.09 and 526.40

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Solution

The fourth proportional to 1,451.08, 2,176.09 and 526.40 is: 789.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.08 : 2,176.09 = 526.40 : x
  2. Step 2: Convert to fraction form
    1,451.08/2,176.09 = 526.40/x
  3. Step 3: Cross multiply
    1,451.08x = 2,176.09 × 526.40
  4. Step 4: Simplify right side
    1,451.08x = 1,145,493.78
  5. Step 5: Solve for x
    x = 1,145,493.78/1,451.08
  6. Step 6: Final answer
    x = 789.41

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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.