Home / 3,688.49-5,532.76-1,091.45

Finding the Fourth Proportional to 3,688.49, 5,532.76 and 1,091.45

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Solution

The fourth proportional to 3,688.49, 5,532.76 and 1,091.45 is: 1,637.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.49 : 5,532.76 = 1,091.45 : x
  2. Step 2: Convert to fraction form
    3,688.49/5,532.76 = 1,091.45/x
  3. Step 3: Cross multiply
    3,688.49x = 5,532.76 × 1,091.45
  4. Step 4: Simplify right side
    3,688.49x = 6,038,730.90
  5. Step 5: Solve for x
    x = 6,038,730.90/3,688.49
  6. Step 6: Final answer
    x = 1,637.18

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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.