Home / 1,782.27-2,459.72-1,119.63

Finding the Fourth Proportional to 1,782.27, 2,459.72 and 1,119.63

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Solution

The fourth proportional to 1,782.27, 2,459.72 and 1,119.63 is: 1,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782.27 : 2,459.72 = 1,119.63 : x
  2. Step 2: Convert to fraction form
    1,782.27/2,459.72 = 1,119.63/x
  3. Step 3: Cross multiply
    1,782.27x = 2,459.72 × 1,119.63
  4. Step 4: Simplify right side
    1,782.27x = 2,753,970.71
  5. Step 5: Solve for x
    x = 2,753,970.71/1,782.27
  6. Step 6: Final answer
    x = 1,545.20

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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.