Home / 2,890.78-4,336.17-2,317.30

Finding the Fourth Proportional to 2,890.78, 4,336.17 and 2,317.30

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Solution

The fourth proportional to 2,890.78, 4,336.17 and 2,317.30 is: 3,475.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.78 : 4,336.17 = 2,317.30 : x
  2. Step 2: Convert to fraction form
    2,890.78/4,336.17 = 2,317.30/x
  3. Step 3: Cross multiply
    2,890.78x = 4,336.17 × 2,317.30
  4. Step 4: Simplify right side
    2,890.78x = 10,048,206.74
  5. Step 5: Solve for x
    x = 10,048,206.74/2,890.78
  6. Step 6: Final answer
    x = 3,475.95

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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.