Home / 1,620.48-2,237.82-1,124.40

Finding the Fourth Proportional to 1,620.48, 2,237.82 and 1,124.40

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Solution

The fourth proportional to 1,620.48, 2,237.82 and 1,124.40 is: 1,552.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.48 : 2,237.82 = 1,124.40 : x
  2. Step 2: Convert to fraction form
    1,620.48/2,237.82 = 1,124.40/x
  3. Step 3: Cross multiply
    1,620.48x = 2,237.82 × 1,124.40
  4. Step 4: Simplify right side
    1,620.48x = 2,516,204.81
  5. Step 5: Solve for x
    x = 2,516,204.81/1,620.48
  6. Step 6: Final answer
    x = 1,552.75

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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.