Home / 1,591.02-2,195.40-927.99

Finding the Fourth Proportional to 1,591.02, 2,195.40 and 927.99

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Solution

The fourth proportional to 1,591.02, 2,195.40 and 927.99 is: 1,280.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.02 : 2,195.40 = 927.99 : x
  2. Step 2: Convert to fraction form
    1,591.02/2,195.40 = 927.99/x
  3. Step 3: Cross multiply
    1,591.02x = 2,195.40 × 927.99
  4. Step 4: Simplify right side
    1,591.02x = 2,037,309.25
  5. Step 5: Solve for x
    x = 2,037,309.25/1,591.02
  6. Step 6: Final answer
    x = 1,280.51

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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.