Home / 3,688.16-5,531.65-1,019.12

Finding the Fourth Proportional to 3,688.16, 5,531.65 and 1,019.12

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Solution

The fourth proportional to 3,688.16, 5,531.65 and 1,019.12 is: 1,528.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.16 : 5,531.65 = 1,019.12 : x
  2. Step 2: Convert to fraction form
    3,688.16/5,531.65 = 1,019.12/x
  3. Step 3: Cross multiply
    3,688.16x = 5,531.65 × 1,019.12
  4. Step 4: Simplify right side
    3,688.16x = 5,637,384.94
  5. Step 5: Solve for x
    x = 5,637,384.94/3,688.16
  6. Step 6: Final answer
    x = 1,528.51

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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.