Home / 5,240.69-7,861.03-1,345.09

Finding the Fourth Proportional to 5,240.69, 7,861.03 and 1,345.09

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Solution

The fourth proportional to 5,240.69, 7,861.03 and 1,345.09 is: 2,017.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.69 : 7,861.03 = 1,345.09 : x
  2. Step 2: Convert to fraction form
    5,240.69/7,861.03 = 1,345.09/x
  3. Step 3: Cross multiply
    5,240.69x = 7,861.03 × 1,345.09
  4. Step 4: Simplify right side
    5,240.69x = 10,573,792.84
  5. Step 5: Solve for x
    x = 10,573,792.84/5,240.69
  6. Step 6: Final answer
    x = 2,017.63

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1.5x scale

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.