Home / 6,870.40-10,305.54-1,940.02

Finding the Fourth Proportional to 6,870.40, 10,305.54 and 1,940.02

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Solution

The fourth proportional to 6,870.40, 10,305.54 and 1,940.02 is: 2,910.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.40 : 10,305.54 = 1,940.02 : x
  2. Step 2: Convert to fraction form
    6,870.40/10,305.54 = 1,940.02/x
  3. Step 3: Cross multiply
    6,870.40x = 10,305.54 × 1,940.02
  4. Step 4: Simplify right side
    6,870.40x = 19,992,953.71
  5. Step 5: Solve for x
    x = 19,992,953.71/6,870.40
  6. Step 6: Final answer
    x = 2,910.01

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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.