Home / 1,622.48-2,435.18-757.28

Finding the Fourth Proportional to 1,622.48, 2,435.18 and 757.28

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Solution

The fourth proportional to 1,622.48, 2,435.18 and 757.28 is: 1,136.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.48 : 2,435.18 = 757.28 : x
  2. Step 2: Convert to fraction form
    1,622.48/2,435.18 = 757.28/x
  3. Step 3: Cross multiply
    1,622.48x = 2,435.18 × 757.28
  4. Step 4: Simplify right side
    1,622.48x = 1,844,113.11
  5. Step 5: Solve for x
    x = 1,844,113.11/1,622.48
  6. Step 6: Final answer
    x = 1,136.60

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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.