Home / 2,113-2,918.34-1,767.40

Finding the Fourth Proportional to 2,113, 2,918.34 and 1,767.40

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Solution

The fourth proportional to 2,113, 2,918.34 and 1,767.40 is: 2,441.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113 : 2,918.34 = 1,767.40 : x
  2. Step 2: Convert to fraction form
    2,113/2,918.34 = 1,767.40/x
  3. Step 3: Cross multiply
    2,113x = 2,918.34 × 1,767.40
  4. Step 4: Simplify right side
    2,113x = 5,157,874.12
  5. Step 5: Solve for x
    x = 5,157,874.12/2,113
  6. Step 6: Final answer
    x = 2,441.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.