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Finding the Fourth Proportional to 5,873.76, 8,810.40 and 1,977.12

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Solution

The fourth proportional to 5,873.76, 8,810.40 and 1,977.12 is: 2,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,873.76 : 8,810.40 = 1,977.12 : x
  2. Step 2: Convert to fraction form
    5,873.76/8,810.40 = 1,977.12/x
  3. Step 3: Cross multiply
    5,873.76x = 8,810.40 × 1,977.12
  4. Step 4: Simplify right side
    5,873.76x = 17,419,218.05
  5. Step 5: Solve for x
    x = 17,419,218.05/5,873.76
  6. Step 6: Final answer
    x = 2,965.60

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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.