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Finding the Fourth Proportional to 1,445.77, 1,995.08 and 848.18

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Solution

The fourth proportional to 1,445.77, 1,995.08 and 848.18 is: 1,170.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.77 : 1,995.08 = 848.18 : x
  2. Step 2: Convert to fraction form
    1,445.77/1,995.08 = 848.18/x
  3. Step 3: Cross multiply
    1,445.77x = 1,995.08 × 848.18
  4. Step 4: Simplify right side
    1,445.77x = 1,692,198.86
  5. Step 5: Solve for x
    x = 1,692,198.86/1,445.77
  6. Step 6: Final answer
    x = 1,170.44

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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.