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Finding the Fourth Proportional to 1,973.22, 2,960.16 and 877.60

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Solution

The fourth proportional to 1,973.22, 2,960.16 and 877.60 is: 1,316.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.22 : 2,960.16 = 877.60 : x
  2. Step 2: Convert to fraction form
    1,973.22/2,960.16 = 877.60/x
  3. Step 3: Cross multiply
    1,973.22x = 2,960.16 × 877.60
  4. Step 4: Simplify right side
    1,973.22x = 2,597,836.42
  5. Step 5: Solve for x
    x = 2,597,836.42/1,973.22
  6. Step 6: Final answer
    x = 1,316.55

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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.