Home / 1,622.16-2,242.08-1,272.24

Finding the Fourth Proportional to 1,622.16, 2,242.08 and 1,272.24

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Solution

The fourth proportional to 1,622.16, 2,242.08 and 1,272.24 is: 1,758.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.16 : 2,242.08 = 1,272.24 : x
  2. Step 2: Convert to fraction form
    1,622.16/2,242.08 = 1,272.24/x
  3. Step 3: Cross multiply
    1,622.16x = 2,242.08 × 1,272.24
  4. Step 4: Simplify right side
    1,622.16x = 2,852,463.86
  5. Step 5: Solve for x
    x = 2,852,463.86/1,622.16
  6. Step 6: Final answer
    x = 1,758.44

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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.