Home / 1,817.81-2,508.64-1,031.91

Finding the Fourth Proportional to 1,817.81, 2,508.64 and 1,031.91

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Solution

The fourth proportional to 1,817.81, 2,508.64 and 1,031.91 is: 1,424.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.81 : 2,508.64 = 1,031.91 : x
  2. Step 2: Convert to fraction form
    1,817.81/2,508.64 = 1,031.91/x
  3. Step 3: Cross multiply
    1,817.81x = 2,508.64 × 1,031.91
  4. Step 4: Simplify right side
    1,817.81x = 2,588,678.72
  5. Step 5: Solve for x
    x = 2,588,678.72/1,817.81
  6. Step 6: Final answer
    x = 1,424.07

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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.