Home / 1,341.17-1,851.08-817.30

Finding the Fourth Proportional to 1,341.17, 1,851.08 and 817.30

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Solution

The fourth proportional to 1,341.17, 1,851.08 and 817.30 is: 1,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.17 : 1,851.08 = 817.30 : x
  2. Step 2: Convert to fraction form
    1,341.17/1,851.08 = 817.30/x
  3. Step 3: Cross multiply
    1,341.17x = 1,851.08 × 817.30
  4. Step 4: Simplify right side
    1,341.17x = 1,512,887.68
  5. Step 5: Solve for x
    x = 1,512,887.68/1,341.17
  6. Step 6: Final answer
    x = 1,128.04

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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.