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Finding the Fourth Proportional to 1,695.06, 2,333.07 and 1,445.58

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Solution

The fourth proportional to 1,695.06, 2,333.07 and 1,445.58 is: 1,989.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.06 : 2,333.07 = 1,445.58 : x
  2. Step 2: Convert to fraction form
    1,695.06/2,333.07 = 1,445.58/x
  3. Step 3: Cross multiply
    1,695.06x = 2,333.07 × 1,445.58
  4. Step 4: Simplify right side
    1,695.06x = 3,372,639.33
  5. Step 5: Solve for x
    x = 3,372,639.33/1,695.06
  6. Step 6: Final answer
    x = 1,989.69

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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.