Home / 1,395.90-2,090.61-1,068.66

Finding the Fourth Proportional to 1,395.90, 2,090.61 and 1,068.66

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Solution

The fourth proportional to 1,395.90, 2,090.61 and 1,068.66 is: 1,600.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.90 : 2,090.61 = 1,068.66 : x
  2. Step 2: Convert to fraction form
    1,395.90/2,090.61 = 1,068.66/x
  3. Step 3: Cross multiply
    1,395.90x = 2,090.61 × 1,068.66
  4. Step 4: Simplify right side
    1,395.90x = 2,234,151.28
  5. Step 5: Solve for x
    x = 2,234,151.28/1,395.90
  6. Step 6: Final answer
    x = 1,600.51

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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.