Home / 1,675.65-2,312.36-929.61

Finding the Fourth Proportional to 1,675.65, 2,312.36 and 929.61

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Solution

The fourth proportional to 1,675.65, 2,312.36 and 929.61 is: 1,282.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.65 : 2,312.36 = 929.61 : x
  2. Step 2: Convert to fraction form
    1,675.65/2,312.36 = 929.61/x
  3. Step 3: Cross multiply
    1,675.65x = 2,312.36 × 929.61
  4. Step 4: Simplify right side
    1,675.65x = 2,149,592.98
  5. Step 5: Solve for x
    x = 2,149,592.98/1,675.65
  6. Step 6: Final answer
    x = 1,282.84

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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.