Home / 2,425.70-3,637.20-1,038.80

Finding the Fourth Proportional to 2,425.70, 3,637.20 and 1,038.80

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Solution

The fourth proportional to 2,425.70, 3,637.20 and 1,038.80 is: 1,557.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,425.70 : 3,637.20 = 1,038.80 : x
  2. Step 2: Convert to fraction form
    2,425.70/3,637.20 = 1,038.80/x
  3. Step 3: Cross multiply
    2,425.70x = 3,637.20 × 1,038.80
  4. Step 4: Simplify right side
    2,425.70x = 3,778,323.36
  5. Step 5: Solve for x
    x = 3,778,323.36/2,425.70
  6. Step 6: Final answer
    x = 1,557.62

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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.