Home / 7,039.85-9,717.43-4,056.88

Finding the Fourth Proportional to 7,039.85, 9,717.43 and 4,056.88

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Solution

The fourth proportional to 7,039.85, 9,717.43 and 4,056.88 is: 5,599.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.85 : 9,717.43 = 4,056.88 : x
  2. Step 2: Convert to fraction form
    7,039.85/9,717.43 = 4,056.88/x
  3. Step 3: Cross multiply
    7,039.85x = 9,717.43 × 4,056.88
  4. Step 4: Simplify right side
    7,039.85x = 39,422,402.84
  5. Step 5: Solve for x
    x = 39,422,402.84/7,039.85
  6. Step 6: Final answer
    x = 5,599.89

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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.