Home / 6,291.70-9,436.38-2,913.69

Finding the Fourth Proportional to 6,291.70, 9,436.38 and 2,913.69

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Solution

The fourth proportional to 6,291.70, 9,436.38 and 2,913.69 is: 4,369.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.70 : 9,436.38 = 2,913.69 : x
  2. Step 2: Convert to fraction form
    6,291.70/9,436.38 = 2,913.69/x
  3. Step 3: Cross multiply
    6,291.70x = 9,436.38 × 2,913.69
  4. Step 4: Simplify right side
    6,291.70x = 27,494,686.04
  5. Step 5: Solve for x
    x = 27,494,686.04/6,291.70
  6. Step 6: Final answer
    x = 4,369.99

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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.