Home / 1,576.43-2,176.06-1,239.45

Finding the Fourth Proportional to 1,576.43, 2,176.06 and 1,239.45

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Solution

The fourth proportional to 1,576.43, 2,176.06 and 1,239.45 is: 1,710.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.43 : 2,176.06 = 1,239.45 : x
  2. Step 2: Convert to fraction form
    1,576.43/2,176.06 = 1,239.45/x
  3. Step 3: Cross multiply
    1,576.43x = 2,176.06 × 1,239.45
  4. Step 4: Simplify right side
    1,576.43x = 2,697,117.57
  5. Step 5: Solve for x
    x = 2,697,117.57/1,576.43
  6. Step 6: Final answer
    x = 1,710.91

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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.