Home / 1,871.65-2,583.10-1,125.98

Finding the Fourth Proportional to 1,871.65, 2,583.10 and 1,125.98

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Solution

The fourth proportional to 1,871.65, 2,583.10 and 1,125.98 is: 1,553.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.65 : 2,583.10 = 1,125.98 : x
  2. Step 2: Convert to fraction form
    1,871.65/2,583.10 = 1,125.98/x
  3. Step 3: Cross multiply
    1,871.65x = 2,583.10 × 1,125.98
  4. Step 4: Simplify right side
    1,871.65x = 2,908,513.31
  5. Step 5: Solve for x
    x = 2,908,513.31/1,871.65
  6. Step 6: Final answer
    x = 1,553.98

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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.