Home / 3,395.88-4,686.84-1,904.40

Finding the Fourth Proportional to 3,395.88, 4,686.84 and 1,904.40

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Solution

The fourth proportional to 3,395.88, 4,686.84 and 1,904.40 is: 2,628.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.88 : 4,686.84 = 1,904.40 : x
  2. Step 2: Convert to fraction form
    3,395.88/4,686.84 = 1,904.40/x
  3. Step 3: Cross multiply
    3,395.88x = 4,686.84 × 1,904.40
  4. Step 4: Simplify right side
    3,395.88x = 8,925,618.10
  5. Step 5: Solve for x
    x = 8,925,618.10/3,395.88
  6. Step 6: Final answer
    x = 2,628.37

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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.