Home / 7,130.64-10,694.76-1,935.36

Finding the Fourth Proportional to 7,130.64, 10,694.76 and 1,935.36

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Solution

The fourth proportional to 7,130.64, 10,694.76 and 1,935.36 is: 2,902.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.64 : 10,694.76 = 1,935.36 : x
  2. Step 2: Convert to fraction form
    7,130.64/10,694.76 = 1,935.36/x
  3. Step 3: Cross multiply
    7,130.64x = 10,694.76 × 1,935.36
  4. Step 4: Simplify right side
    7,130.64x = 20,698,210.71
  5. Step 5: Solve for x
    x = 20,698,210.71/7,130.64
  6. Step 6: Final answer
    x = 2,902.71

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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.