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Finding the Fourth Proportional to 837.55, 1,254.30 and 675.55

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Solution

The fourth proportional to 837.55, 1,254.30 and 675.55 is: 1,011.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.55 : 1,254.30 = 675.55 : x
  2. Step 2: Convert to fraction form
    837.55/1,254.30 = 675.55/x
  3. Step 3: Cross multiply
    837.55x = 1,254.30 × 675.55
  4. Step 4: Simplify right side
    837.55x = 847,342.37
  5. Step 5: Solve for x
    x = 847,342.37/837.55
  6. Step 6: Final answer
    x = 1,011.69

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1.5x scale

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.