Home / 5,638.02-7,780.77-3,542.82

Finding the Fourth Proportional to 5,638.02, 7,780.77 and 3,542.82

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Solution

The fourth proportional to 5,638.02, 7,780.77 and 3,542.82 is: 4,889.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.02 : 7,780.77 = 3,542.82 : x
  2. Step 2: Convert to fraction form
    5,638.02/7,780.77 = 3,542.82/x
  3. Step 3: Cross multiply
    5,638.02x = 7,780.77 × 3,542.82
  4. Step 4: Simplify right side
    5,638.02x = 27,565,867.57
  5. Step 5: Solve for x
    x = 27,565,867.57/5,638.02
  6. Step 6: Final answer
    x = 4,889.28

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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.