Home / 7,720.26-11,580.58-2,455.17

Finding the Fourth Proportional to 7,720.26, 11,580.58 and 2,455.17

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Solution

The fourth proportional to 7,720.26, 11,580.58 and 2,455.17 is: 3,682.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.26 : 11,580.58 = 2,455.17 : x
  2. Step 2: Convert to fraction form
    7,720.26/11,580.58 = 2,455.17/x
  3. Step 3: Cross multiply
    7,720.26x = 11,580.58 × 2,455.17
  4. Step 4: Simplify right side
    7,720.26x = 28,432,337.12
  5. Step 5: Solve for x
    x = 28,432,337.12/7,720.26
  6. Step 6: Final answer
    x = 3,682.82

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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.