Home / 3,240.08-4,860.14-1,389.63

Finding the Fourth Proportional to 3,240.08, 4,860.14 and 1,389.63

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Solution

The fourth proportional to 3,240.08, 4,860.14 and 1,389.63 is: 2,084.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.08 : 4,860.14 = 1,389.63 : x
  2. Step 2: Convert to fraction form
    3,240.08/4,860.14 = 1,389.63/x
  3. Step 3: Cross multiply
    3,240.08x = 4,860.14 × 1,389.63
  4. Step 4: Simplify right side
    3,240.08x = 6,753,789.40
  5. Step 5: Solve for x
    x = 6,753,789.40/3,240.08
  6. Step 6: Final answer
    x = 2,084.45

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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.