Home / 1,461.02-2,016.20-797.90

Finding the Fourth Proportional to 1,461.02, 2,016.20 and 797.90

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Solution

The fourth proportional to 1,461.02, 2,016.20 and 797.90 is: 1,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.02 : 2,016.20 = 797.90 : x
  2. Step 2: Convert to fraction form
    1,461.02/2,016.20 = 797.90/x
  3. Step 3: Cross multiply
    1,461.02x = 2,016.20 × 797.90
  4. Step 4: Simplify right side
    1,461.02x = 1,608,717.89
  5. Step 5: Solve for x
    x = 1,608,717.89/1,461.02
  6. Step 6: Final answer
    x = 1,101.10

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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.