Home / 1,772.10-2,659.35-1,040.90

Finding the Fourth Proportional to 1,772.10, 2,659.35 and 1,040.90

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Solution

The fourth proportional to 1,772.10, 2,659.35 and 1,040.90 is: 1,562.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.10 : 2,659.35 = 1,040.90 : x
  2. Step 2: Convert to fraction form
    1,772.10/2,659.35 = 1,040.90/x
  3. Step 3: Cross multiply
    1,772.10x = 2,659.35 × 1,040.90
  4. Step 4: Simplify right side
    1,772.10x = 2,768,117.42
  5. Step 5: Solve for x
    x = 2,768,117.42/1,772.10
  6. Step 6: Final answer
    x = 1,562.05

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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.