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Finding the Fourth Proportional to 1,551.96, 2,140.83 and 962.10

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Solution

The fourth proportional to 1,551.96, 2,140.83 and 962.10 is: 1,327.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.96 : 2,140.83 = 962.10 : x
  2. Step 2: Convert to fraction form
    1,551.96/2,140.83 = 962.10/x
  3. Step 3: Cross multiply
    1,551.96x = 2,140.83 × 962.10
  4. Step 4: Simplify right side
    1,551.96x = 2,059,692.54
  5. Step 5: Solve for x
    x = 2,059,692.54/1,551.96
  6. Step 6: Final answer
    x = 1,327.16

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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.