Home / 3,124.43-4,312.64-1,866.36

Finding the Fourth Proportional to 3,124.43, 4,312.64 and 1,866.36

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Solution

The fourth proportional to 3,124.43, 4,312.64 and 1,866.36 is: 2,576.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.43 : 4,312.64 = 1,866.36 : x
  2. Step 2: Convert to fraction form
    3,124.43/4,312.64 = 1,866.36/x
  3. Step 3: Cross multiply
    3,124.43x = 4,312.64 × 1,866.36
  4. Step 4: Simplify right side
    3,124.43x = 8,048,929.46
  5. Step 5: Solve for x
    x = 8,048,929.46/3,124.43
  6. Step 6: Final answer
    x = 2,576.13

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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.