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Finding the Fourth Proportional to 1,550.57, 2,323.12 and 818.53

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Solution

The fourth proportional to 1,550.57, 2,323.12 and 818.53 is: 1,226.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.57 : 2,323.12 = 818.53 : x
  2. Step 2: Convert to fraction form
    1,550.57/2,323.12 = 818.53/x
  3. Step 3: Cross multiply
    1,550.57x = 2,323.12 × 818.53
  4. Step 4: Simplify right side
    1,550.57x = 1,901,543.41
  5. Step 5: Solve for x
    x = 1,901,543.41/1,550.57
  6. Step 6: Final answer
    x = 1,226.35

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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.