Home / 1,871.29-2,582.39-1,031.98

Finding the Fourth Proportional to 1,871.29, 2,582.39 and 1,031.98

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Solution

The fourth proportional to 1,871.29, 2,582.39 and 1,031.98 is: 1,424.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.29 : 2,582.39 = 1,031.98 : x
  2. Step 2: Convert to fraction form
    1,871.29/2,582.39 = 1,031.98/x
  3. Step 3: Cross multiply
    1,871.29x = 2,582.39 × 1,031.98
  4. Step 4: Simplify right side
    1,871.29x = 2,664,967.09
  5. Step 5: Solve for x
    x = 2,664,967.09/1,871.29
  6. Step 6: Final answer
    x = 1,424.14

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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.