Home / 3,435.68-5,153.64-2,280.80

Finding the Fourth Proportional to 3,435.68, 5,153.64 and 2,280.80

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Solution

The fourth proportional to 3,435.68, 5,153.64 and 2,280.80 is: 3,421.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.68 : 5,153.64 = 2,280.80 : x
  2. Step 2: Convert to fraction form
    3,435.68/5,153.64 = 2,280.80/x
  3. Step 3: Cross multiply
    3,435.68x = 5,153.64 × 2,280.80
  4. Step 4: Simplify right side
    3,435.68x = 11,754,422.11
  5. Step 5: Solve for x
    x = 11,754,422.11/3,435.68
  6. Step 6: Final answer
    x = 3,421.28

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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.