Home / 1,480.02-2,042.17-850.40

Finding the Fourth Proportional to 1,480.02, 2,042.17 and 850.40

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Solution

The fourth proportional to 1,480.02, 2,042.17 and 850.40 is: 1,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480.02 : 2,042.17 = 850.40 : x
  2. Step 2: Convert to fraction form
    1,480.02/2,042.17 = 850.40/x
  3. Step 3: Cross multiply
    1,480.02x = 2,042.17 × 850.40
  4. Step 4: Simplify right side
    1,480.02x = 1,736,646.91
  5. Step 5: Solve for x
    x = 1,736,646.91/1,480.02
  6. Step 6: Final answer
    x = 1,173.40

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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.