Home / 3,424.18-4,720.76-2,675.20

Finding the Fourth Proportional to 3,424.18, 4,720.76 and 2,675.20

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Solution

The fourth proportional to 3,424.18, 4,720.76 and 2,675.20 is: 3,688.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,424.18 : 4,720.76 = 2,675.20 : x
  2. Step 2: Convert to fraction form
    3,424.18/4,720.76 = 2,675.20/x
  3. Step 3: Cross multiply
    3,424.18x = 4,720.76 × 2,675.20
  4. Step 4: Simplify right side
    3,424.18x = 12,628,977.15
  5. Step 5: Solve for x
    x = 12,628,977.15/3,424.18
  6. Step 6: Final answer
    x = 3,688.18

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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.