Home / 3,538.90-4,885.73-2,647.56

Finding the Fourth Proportional to 3,538.90, 4,885.73 and 2,647.56

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Solution

The fourth proportional to 3,538.90, 4,885.73 and 2,647.56 is: 3,655.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.90 : 4,885.73 = 2,647.56 : x
  2. Step 2: Convert to fraction form
    3,538.90/4,885.73 = 2,647.56/x
  3. Step 3: Cross multiply
    3,538.90x = 4,885.73 × 2,647.56
  4. Step 4: Simplify right side
    3,538.90x = 12,935,263.32
  5. Step 5: Solve for x
    x = 12,935,263.32/3,538.90
  6. Step 6: Final answer
    x = 3,655.16

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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.