Home / 2,637.50-3,948.03-1,661.55

Finding the Fourth Proportional to 2,637.50, 3,948.03 and 1,661.55

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Solution

The fourth proportional to 2,637.50, 3,948.03 and 1,661.55 is: 2,487.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,637.50 : 3,948.03 = 1,661.55 : x
  2. Step 2: Convert to fraction form
    2,637.50/3,948.03 = 1,661.55/x
  3. Step 3: Cross multiply
    2,637.50x = 3,948.03 × 1,661.55
  4. Step 4: Simplify right side
    2,637.50x = 6,559,849.25
  5. Step 5: Solve for x
    x = 6,559,849.25/2,637.50
  6. Step 6: Final answer
    x = 2,487.15

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1.5x scale

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.