Home / 1,637.60-2,453.28-1,018.40

Finding the Fourth Proportional to 1,637.60, 2,453.28 and 1,018.40

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Solution

The fourth proportional to 1,637.60, 2,453.28 and 1,018.40 is: 1,525.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.60 : 2,453.28 = 1,018.40 : x
  2. Step 2: Convert to fraction form
    1,637.60/2,453.28 = 1,018.40/x
  3. Step 3: Cross multiply
    1,637.60x = 2,453.28 × 1,018.40
  4. Step 4: Simplify right side
    1,637.60x = 2,498,420.35
  5. Step 5: Solve for x
    x = 2,498,420.35/1,637.60
  6. Step 6: Final answer
    x = 1,525.66

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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.