Home / 3,637.76-5,455.35-1,688.63

Finding the Fourth Proportional to 3,637.76, 5,455.35 and 1,688.63

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Solution

The fourth proportional to 3,637.76, 5,455.35 and 1,688.63 is: 2,532.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,637.76 : 5,455.35 = 1,688.63 : x
  2. Step 2: Convert to fraction form
    3,637.76/5,455.35 = 1,688.63/x
  3. Step 3: Cross multiply
    3,637.76x = 5,455.35 × 1,688.63
  4. Step 4: Simplify right side
    3,637.76x = 9,212,040.39
  5. Step 5: Solve for x
    x = 9,212,040.39/3,637.76
  6. Step 6: Final answer
    x = 2,532.34

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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.