Home / 3,615.81-4,985.88-2,354.55

Finding the Fourth Proportional to 3,615.81, 4,985.88 and 2,354.55

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Solution

The fourth proportional to 3,615.81, 4,985.88 and 2,354.55 is: 3,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.81 : 4,985.88 = 2,354.55 : x
  2. Step 2: Convert to fraction form
    3,615.81/4,985.88 = 2,354.55/x
  3. Step 3: Cross multiply
    3,615.81x = 4,985.88 × 2,354.55
  4. Step 4: Simplify right side
    3,615.81x = 11,739,503.75
  5. Step 5: Solve for x
    x = 11,739,503.75/3,615.81
  6. Step 6: Final answer
    x = 3,246.71

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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.