Home / 1,558.58-2,148.77-1,292.03

Finding the Fourth Proportional to 1,558.58, 2,148.77 and 1,292.03

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Solution

The fourth proportional to 1,558.58, 2,148.77 and 1,292.03 is: 1,781.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.58 : 2,148.77 = 1,292.03 : x
  2. Step 2: Convert to fraction form
    1,558.58/2,148.77 = 1,292.03/x
  3. Step 3: Cross multiply
    1,558.58x = 2,148.77 × 1,292.03
  4. Step 4: Simplify right side
    1,558.58x = 2,776,267.79
  5. Step 5: Solve for x
    x = 2,776,267.79/1,558.58
  6. Step 6: Final answer
    x = 1,781.28

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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.