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Finding the Fourth Proportional to 1,899.93, 2,850.63 and 975.72

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Solution

The fourth proportional to 1,899.93, 2,850.63 and 975.72 is: 1,463.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.93 : 2,850.63 = 975.72 : x
  2. Step 2: Convert to fraction form
    1,899.93/2,850.63 = 975.72/x
  3. Step 3: Cross multiply
    1,899.93x = 2,850.63 × 975.72
  4. Step 4: Simplify right side
    1,899.93x = 2,781,416.70
  5. Step 5: Solve for x
    x = 2,781,416.70/1,899.93
  6. Step 6: Final answer
    x = 1,463.96

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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.