Home / 6,899.24-9,520.67-3,915.01

Finding the Fourth Proportional to 6,899.24, 9,520.67 and 3,915.01

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Solution

The fourth proportional to 6,899.24, 9,520.67 and 3,915.01 is: 5,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.24 : 9,520.67 = 3,915.01 : x
  2. Step 2: Convert to fraction form
    6,899.24/9,520.67 = 3,915.01/x
  3. Step 3: Cross multiply
    6,899.24x = 9,520.67 × 3,915.01
  4. Step 4: Simplify right side
    6,899.24x = 37,273,518.26
  5. Step 5: Solve for x
    x = 37,273,518.26/6,899.24
  6. Step 6: Final answer
    x = 5,402.55

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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.