Home / 3,260.49-4,890.93-1,312.68

Finding the Fourth Proportional to 3,260.49, 4,890.93 and 1,312.68

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Solution

The fourth proportional to 3,260.49, 4,890.93 and 1,312.68 is: 1,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.49 : 4,890.93 = 1,312.68 : x
  2. Step 2: Convert to fraction form
    3,260.49/4,890.93 = 1,312.68/x
  3. Step 3: Cross multiply
    3,260.49x = 4,890.93 × 1,312.68
  4. Step 4: Simplify right side
    3,260.49x = 6,420,225.99
  5. Step 5: Solve for x
    x = 6,420,225.99/3,260.49
  6. Step 6: Final answer
    x = 1,969.10

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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.