Home / 2,153.16-2,969.46-1,455.48

Finding the Fourth Proportional to 2,153.16, 2,969.46 and 1,455.48

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Solution

The fourth proportional to 2,153.16, 2,969.46 and 1,455.48 is: 2,007.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.16 : 2,969.46 = 1,455.48 : x
  2. Step 2: Convert to fraction form
    2,153.16/2,969.46 = 1,455.48/x
  3. Step 3: Cross multiply
    2,153.16x = 2,969.46 × 1,455.48
  4. Step 4: Simplify right side
    2,153.16x = 4,321,989.64
  5. Step 5: Solve for x
    x = 4,321,989.64/2,153.16
  6. Step 6: Final answer
    x = 2,007.28

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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.