Home / 2,154.69-2,973.80-1,270.58

Finding the Fourth Proportional to 2,154.69, 2,973.80 and 1,270.58

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Solution

The fourth proportional to 2,154.69, 2,973.80 and 1,270.58 is: 1,753.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.69 : 2,973.80 = 1,270.58 : x
  2. Step 2: Convert to fraction form
    2,154.69/2,973.80 = 1,270.58/x
  3. Step 3: Cross multiply
    2,154.69x = 2,973.80 × 1,270.58
  4. Step 4: Simplify right side
    2,154.69x = 3,778,439.11
  5. Step 5: Solve for x
    x = 3,778,439.11/2,154.69
  6. Step 6: Final answer
    x = 1,753.59

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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.