Home / 1,591.10-2,195.60-927.87

Finding the Fourth Proportional to 1,591.10, 2,195.60 and 927.87

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Solution

The fourth proportional to 1,591.10, 2,195.60 and 927.87 is: 1,280.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.10 : 2,195.60 = 927.87 : x
  2. Step 2: Convert to fraction form
    1,591.10/2,195.60 = 927.87/x
  3. Step 3: Cross multiply
    1,591.10x = 2,195.60 × 927.87
  4. Step 4: Simplify right side
    1,591.10x = 2,037,218.50
  5. Step 5: Solve for x
    x = 2,037,218.50/1,591.10
  6. Step 6: Final answer
    x = 1,280.38

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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.