Home / 3,637.95-5,455.13-1,688.91

Finding the Fourth Proportional to 3,637.95, 5,455.13 and 1,688.91

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Solution

The fourth proportional to 3,637.95, 5,455.13 and 1,688.91 is: 2,532.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,637.95 : 5,455.13 = 1,688.91 : x
  2. Step 2: Convert to fraction form
    3,637.95/5,455.13 = 1,688.91/x
  3. Step 3: Cross multiply
    3,637.95x = 5,455.13 × 1,688.91
  4. Step 4: Simplify right side
    3,637.95x = 9,213,215.16
  5. Step 5: Solve for x
    x = 9,213,215.16/3,637.95
  6. Step 6: Final answer
    x = 2,532.53

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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.