Home / 2,458.13-3,390.00-1,618.53

Finding the Fourth Proportional to 2,458.13, 3,390.00 and 1,618.53

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Solution

The fourth proportional to 2,458.13, 3,390.00 and 1,618.53 is: 2,232.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,458.13 : 3,390.00 = 1,618.53 : x
  2. Step 2: Convert to fraction form
    2,458.13/3,390.00 = 1,618.53/x
  3. Step 3: Cross multiply
    2,458.13x = 3,390.00 × 1,618.53
  4. Step 4: Simplify right side
    2,458.13x = 5,486,807.02
  5. Step 5: Solve for x
    x = 5,486,807.02/2,458.13
  6. Step 6: Final answer
    x = 2,232.11

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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.