Home / 2,428.40-3,637.20-1,877.60

Finding the Fourth Proportional to 2,428.40, 3,637.20 and 1,877.60

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Solution

The fourth proportional to 2,428.40, 3,637.20 and 1,877.60 is: 2,812.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.40 : 3,637.20 = 1,877.60 : x
  2. Step 2: Convert to fraction form
    2,428.40/3,637.20 = 1,877.60/x
  3. Step 3: Cross multiply
    2,428.40x = 3,637.20 × 1,877.60
  4. Step 4: Simplify right side
    2,428.40x = 6,829,206.72
  5. Step 5: Solve for x
    x = 6,829,206.72/2,428.40
  6. Step 6: Final answer
    x = 2,812.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.