Home / 2,435.20-3,625.28-2,420.80

Finding the Fourth Proportional to 2,435.20, 3,625.28 and 2,420.80

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Solution

The fourth proportional to 2,435.20, 3,625.28 and 2,420.80 is: 3,603.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,435.20 : 3,625.28 = 2,420.80 : x
  2. Step 2: Convert to fraction form
    2,435.20/3,625.28 = 2,420.80/x
  3. Step 3: Cross multiply
    2,435.20x = 3,625.28 × 2,420.80
  4. Step 4: Simplify right side
    2,435.20x = 8,776,077.82
  5. Step 5: Solve for x
    x = 8,776,077.82/2,435.20
  6. Step 6: Final answer
    x = 3,603.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.