Home / 2,985.13-4,120.08-1,726.59

Finding the Fourth Proportional to 2,985.13, 4,120.08 and 1,726.59

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Solution

The fourth proportional to 2,985.13, 4,120.08 and 1,726.59 is: 2,383.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.13 : 4,120.08 = 1,726.59 : x
  2. Step 2: Convert to fraction form
    2,985.13/4,120.08 = 1,726.59/x
  3. Step 3: Cross multiply
    2,985.13x = 4,120.08 × 1,726.59
  4. Step 4: Simplify right side
    2,985.13x = 7,113,688.74
  5. Step 5: Solve for x
    x = 7,113,688.74/2,985.13
  6. Step 6: Final answer
    x = 2,383.04

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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.