Home / 2,064.12-2,848.35-1,224.78

Finding the Fourth Proportional to 2,064.12, 2,848.35 and 1,224.78

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Solution

The fourth proportional to 2,064.12, 2,848.35 and 1,224.78 is: 1,690.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,064.12 : 2,848.35 = 1,224.78 : x
  2. Step 2: Convert to fraction form
    2,064.12/2,848.35 = 1,224.78/x
  3. Step 3: Cross multiply
    2,064.12x = 2,848.35 × 1,224.78
  4. Step 4: Simplify right side
    2,064.12x = 3,488,602.11
  5. Step 5: Solve for x
    x = 3,488,602.11/2,064.12
  6. Step 6: Final answer
    x = 1,690.12

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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.