Home / 1,508.12-2,076.68-1,420.44

Finding the Fourth Proportional to 1,508.12, 2,076.68 and 1,420.44

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Solution

The fourth proportional to 1,508.12, 2,076.68 and 1,420.44 is: 1,955.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.12 : 2,076.68 = 1,420.44 : x
  2. Step 2: Convert to fraction form
    1,508.12/2,076.68 = 1,420.44/x
  3. Step 3: Cross multiply
    1,508.12x = 2,076.68 × 1,420.44
  4. Step 4: Simplify right side
    1,508.12x = 2,949,799.34
  5. Step 5: Solve for x
    x = 2,949,799.34/1,508.12
  6. Step 6: Final answer
    x = 1,955.94

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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.