Home / 1,445.16-1,994.38-1,025.66

Finding the Fourth Proportional to 1,445.16, 1,994.38 and 1,025.66

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Solution

The fourth proportional to 1,445.16, 1,994.38 and 1,025.66 is: 1,415.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.16 : 1,994.38 = 1,025.66 : x
  2. Step 2: Convert to fraction form
    1,445.16/1,994.38 = 1,025.66/x
  3. Step 3: Cross multiply
    1,445.16x = 1,994.38 × 1,025.66
  4. Step 4: Simplify right side
    1,445.16x = 2,045,555.79
  5. Step 5: Solve for x
    x = 2,045,555.79/1,445.16
  6. Step 6: Final answer
    x = 1,415.45

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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.