Home / 1,573.66-2,172.16-1,407.58

Finding the Fourth Proportional to 1,573.66, 2,172.16 and 1,407.58

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Solution

The fourth proportional to 1,573.66, 2,172.16 and 1,407.58 is: 1,942.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.66 : 2,172.16 = 1,407.58 : x
  2. Step 2: Convert to fraction form
    1,573.66/2,172.16 = 1,407.58/x
  3. Step 3: Cross multiply
    1,573.66x = 2,172.16 × 1,407.58
  4. Step 4: Simplify right side
    1,573.66x = 3,057,488.97
  5. Step 5: Solve for x
    x = 3,057,488.97/1,573.66
  6. Step 6: Final answer
    x = 1,942.92

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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.