Home / 3,260.09-4,890.95-1,312.45

Finding the Fourth Proportional to 3,260.09, 4,890.95 and 1,312.45

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Solution

The fourth proportional to 3,260.09, 4,890.95 and 1,312.45 is: 1,969.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.09 : 4,890.95 = 1,312.45 : x
  2. Step 2: Convert to fraction form
    3,260.09/4,890.95 = 1,312.45/x
  3. Step 3: Cross multiply
    3,260.09x = 4,890.95 × 1,312.45
  4. Step 4: Simplify right side
    3,260.09x = 6,419,127.33
  5. Step 5: Solve for x
    x = 6,419,127.33/3,260.09
  6. Step 6: Final answer
    x = 1,969.00

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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.