Home / 5,302.85-7,317.49-2,912.75

Finding the Fourth Proportional to 5,302.85, 7,317.49 and 2,912.75

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Solution

The fourth proportional to 5,302.85, 7,317.49 and 2,912.75 is: 4,019.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,302.85 : 7,317.49 = 2,912.75 : x
  2. Step 2: Convert to fraction form
    5,302.85/7,317.49 = 2,912.75/x
  3. Step 3: Cross multiply
    5,302.85x = 7,317.49 × 2,912.75
  4. Step 4: Simplify right side
    5,302.85x = 21,314,019.00
  5. Step 5: Solve for x
    x = 21,314,019.00/5,302.85
  6. Step 6: Final answer
    x = 4,019.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.