Home / 2,918.17-4,369.42-1,820.35

Finding the Fourth Proportional to 2,918.17, 4,369.42 and 1,820.35

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Solution

The fourth proportional to 2,918.17, 4,369.42 and 1,820.35 is: 2,725.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.17 : 4,369.42 = 1,820.35 : x
  2. Step 2: Convert to fraction form
    2,918.17/4,369.42 = 1,820.35/x
  3. Step 3: Cross multiply
    2,918.17x = 4,369.42 × 1,820.35
  4. Step 4: Simplify right side
    2,918.17x = 7,953,873.70
  5. Step 5: Solve for x
    x = 7,953,873.70/2,918.17
  6. Step 6: Final answer
    x = 2,725.64

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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.