Home / 5,580.78-7,703.64-4,187.58

Finding the Fourth Proportional to 5,580.78, 7,703.64 and 4,187.58

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Solution

The fourth proportional to 5,580.78, 7,703.64 and 4,187.58 is: 5,780.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,580.78 : 7,703.64 = 4,187.58 : x
  2. Step 2: Convert to fraction form
    5,580.78/7,703.64 = 4,187.58/x
  3. Step 3: Cross multiply
    5,580.78x = 7,703.64 × 4,187.58
  4. Step 4: Simplify right side
    5,580.78x = 32,259,608.79
  5. Step 5: Solve for x
    x = 32,259,608.79/5,580.78
  6. Step 6: Final answer
    x = 5,780.48

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1.5x scale

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.