Home / 5,637.90-7,780.26-3,153.90

Finding the Fourth Proportional to 5,637.90, 7,780.26 and 3,153.90

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Solution

The fourth proportional to 5,637.90, 7,780.26 and 3,153.90 is: 4,352.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.90 : 7,780.26 = 3,153.90 : x
  2. Step 2: Convert to fraction form
    5,637.90/7,780.26 = 3,153.90/x
  3. Step 3: Cross multiply
    5,637.90x = 7,780.26 × 3,153.90
  4. Step 4: Simplify right side
    5,637.90x = 24,538,162.01
  5. Step 5: Solve for x
    x = 24,538,162.01/5,637.90
  6. Step 6: Final answer
    x = 4,352.36

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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.