Home / 3,368.70-5,051.08-1,288.84

Finding the Fourth Proportional to 3,368.70, 5,051.08 and 1,288.84

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Solution

The fourth proportional to 3,368.70, 5,051.08 and 1,288.84 is: 1,932.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.70 : 5,051.08 = 1,288.84 : x
  2. Step 2: Convert to fraction form
    3,368.70/5,051.08 = 1,288.84/x
  3. Step 3: Cross multiply
    3,368.70x = 5,051.08 × 1,288.84
  4. Step 4: Simplify right side
    3,368.70x = 6,510,053.76
  5. Step 5: Solve for x
    x = 6,510,053.76/3,368.70
  6. Step 6: Final answer
    x = 1,932.51

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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.