Home / 3,615.08-5,412.36-2,378.76

Finding the Fourth Proportional to 3,615.08, 5,412.36 and 2,378.76

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Solution

The fourth proportional to 3,615.08, 5,412.36 and 2,378.76 is: 3,561.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.08 : 5,412.36 = 2,378.76 : x
  2. Step 2: Convert to fraction form
    3,615.08/5,412.36 = 2,378.76/x
  3. Step 3: Cross multiply
    3,615.08x = 5,412.36 × 2,378.76
  4. Step 4: Simplify right side
    3,615.08x = 12,874,705.47
  5. Step 5: Solve for x
    x = 12,874,705.47/3,615.08
  6. Step 6: Final answer
    x = 3,561.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.