Home / 1,731.02-2,388.60-984.98

Finding the Fourth Proportional to 1,731.02, 2,388.60 and 984.98

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Solution

The fourth proportional to 1,731.02, 2,388.60 and 984.98 is: 1,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.02 : 2,388.60 = 984.98 : x
  2. Step 2: Convert to fraction form
    1,731.02/2,388.60 = 984.98/x
  3. Step 3: Cross multiply
    1,731.02x = 2,388.60 × 984.98
  4. Step 4: Simplify right side
    1,731.02x = 2,352,723.23
  5. Step 5: Solve for x
    x = 2,352,723.23/1,731.02
  6. Step 6: Final answer
    x = 1,359.15

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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.