Home / 3,395.40-4,689.54-2,705.28

Finding the Fourth Proportional to 3,395.40, 4,689.54 and 2,705.28

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Solution

The fourth proportional to 3,395.40, 4,689.54 and 2,705.28 is: 3,736.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.40 : 4,689.54 = 2,705.28 : x
  2. Step 2: Convert to fraction form
    3,395.40/4,689.54 = 2,705.28/x
  3. Step 3: Cross multiply
    3,395.40x = 4,689.54 × 2,705.28
  4. Step 4: Simplify right side
    3,395.40x = 12,686,518.77
  5. Step 5: Solve for x
    x = 12,686,518.77/3,395.40
  6. Step 6: Final answer
    x = 3,736.38

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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.