Home / 3,411.68-5,117.24-1,220.18

Finding the Fourth Proportional to 3,411.68, 5,117.24 and 1,220.18

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Solution

The fourth proportional to 3,411.68, 5,117.24 and 1,220.18 is: 1,830.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.68 : 5,117.24 = 1,220.18 : x
  2. Step 2: Convert to fraction form
    3,411.68/5,117.24 = 1,220.18/x
  3. Step 3: Cross multiply
    3,411.68x = 5,117.24 × 1,220.18
  4. Step 4: Simplify right side
    3,411.68x = 6,243,931.37
  5. Step 5: Solve for x
    x = 6,243,931.37/3,411.68
  6. Step 6: Final answer
    x = 1,830.17

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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.