Home / 3,521.71-4,859.40-1,949.50

Finding the Fourth Proportional to 3,521.71, 4,859.40 and 1,949.50

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Solution

The fourth proportional to 3,521.71, 4,859.40 and 1,949.50 is: 2,690.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.71 : 4,859.40 = 1,949.50 : x
  2. Step 2: Convert to fraction form
    3,521.71/4,859.40 = 1,949.50/x
  3. Step 3: Cross multiply
    3,521.71x = 4,859.40 × 1,949.50
  4. Step 4: Simplify right side
    3,521.71x = 9,473,400.30
  5. Step 5: Solve for x
    x = 9,473,400.30/3,521.71
  6. Step 6: Final answer
    x = 2,690.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.