Home / 1,637.50-2,259.66-929.20

Finding the Fourth Proportional to 1,637.50, 2,259.66 and 929.20

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Solution

The fourth proportional to 1,637.50, 2,259.66 and 929.20 is: 1,282.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,637.50 : 2,259.66 = 929.20 : x
  2. Step 2: Convert to fraction form
    1,637.50/2,259.66 = 929.20/x
  3. Step 3: Cross multiply
    1,637.50x = 2,259.66 × 929.20
  4. Step 4: Simplify right side
    1,637.50x = 2,099,676.07
  5. Step 5: Solve for x
    x = 2,099,676.07/1,637.50
  6. Step 6: Final answer
    x = 1,282.24

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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.