Home / 5,215.05-7,812.50-2,899.53

Finding the Fourth Proportional to 5,215.05, 7,812.50 and 2,899.53

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Solution

The fourth proportional to 5,215.05, 7,812.50 and 2,899.53 is: 4,343.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.05 : 7,812.50 = 2,899.53 : x
  2. Step 2: Convert to fraction form
    5,215.05/7,812.50 = 2,899.53/x
  3. Step 3: Cross multiply
    5,215.05x = 7,812.50 × 2,899.53
  4. Step 4: Simplify right side
    5,215.05x = 22,652,563.63
  5. Step 5: Solve for x
    x = 22,652,563.63/5,215.05
  6. Step 6: Final answer
    x = 4,343.69

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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.