Home / 1,407.69-2,106.57-1,073.55

Finding the Fourth Proportional to 1,407.69, 2,106.57 and 1,073.55

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Solution

The fourth proportional to 1,407.69, 2,106.57 and 1,073.55 is: 1,606.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.69 : 2,106.57 = 1,073.55 : x
  2. Step 2: Convert to fraction form
    1,407.69/2,106.57 = 1,073.55/x
  3. Step 3: Cross multiply
    1,407.69x = 2,106.57 × 1,073.55
  4. Step 4: Simplify right side
    1,407.69x = 2,261,508.22
  5. Step 5: Solve for x
    x = 2,261,508.22/1,407.69
  6. Step 6: Final answer
    x = 1,606.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.