Home / 1,864.63-2,572.99-1,078.53

Finding the Fourth Proportional to 1,864.63, 2,572.99 and 1,078.53

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Solution

The fourth proportional to 1,864.63, 2,572.99 and 1,078.53 is: 1,488.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.63 : 2,572.99 = 1,078.53 : x
  2. Step 2: Convert to fraction form
    1,864.63/2,572.99 = 1,078.53/x
  3. Step 3: Cross multiply
    1,864.63x = 2,572.99 × 1,078.53
  4. Step 4: Simplify right side
    1,864.63x = 2,775,046.90
  5. Step 5: Solve for x
    x = 2,775,046.90/1,864.63
  6. Step 6: Final answer
    x = 1,488.26

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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.