Home / 7,130.84-10,695.96-1,865.76

Finding the Fourth Proportional to 7,130.84, 10,695.96 and 1,865.76

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Solution

The fourth proportional to 7,130.84, 10,695.96 and 1,865.76 is: 2,798.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.84 : 10,695.96 = 1,865.76 : x
  2. Step 2: Convert to fraction form
    7,130.84/10,695.96 = 1,865.76/x
  3. Step 3: Cross multiply
    7,130.84x = 10,695.96 × 1,865.76
  4. Step 4: Simplify right side
    7,130.84x = 19,956,141.44
  5. Step 5: Solve for x
    x = 19,956,141.44/7,130.84
  6. Step 6: Final answer
    x = 2,798.57

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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.