Home / 2,484.60-3,428.40-1,489.68

Finding the Fourth Proportional to 2,484.60, 3,428.40 and 1,489.68

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Solution

The fourth proportional to 2,484.60, 3,428.40 and 1,489.68 is: 2,055.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,484.60 : 3,428.40 = 1,489.68 : x
  2. Step 2: Convert to fraction form
    2,484.60/3,428.40 = 1,489.68/x
  3. Step 3: Cross multiply
    2,484.60x = 3,428.40 × 1,489.68
  4. Step 4: Simplify right side
    2,484.60x = 5,107,218.91
  5. Step 5: Solve for x
    x = 5,107,218.91/2,484.60
  6. Step 6: Final answer
    x = 2,055.55

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1.5x scale

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.