Home / 6,287.85-9,423.45-3,515.76

Finding the Fourth Proportional to 6,287.85, 9,423.45 and 3,515.76

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Solution

The fourth proportional to 6,287.85, 9,423.45 and 3,515.76 is: 5,268.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.85 : 9,423.45 = 3,515.76 : x
  2. Step 2: Convert to fraction form
    6,287.85/9,423.45 = 3,515.76/x
  3. Step 3: Cross multiply
    6,287.85x = 9,423.45 × 3,515.76
  4. Step 4: Simplify right side
    6,287.85x = 33,130,588.57
  5. Step 5: Solve for x
    x = 33,130,588.57/6,287.85
  6. Step 6: Final answer
    x = 5,268.99

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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.