Home / 2,157.18-2,977.43-2,011.26

Finding the Fourth Proportional to 2,157.18, 2,977.43 and 2,011.26

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Solution

The fourth proportional to 2,157.18, 2,977.43 and 2,011.26 is: 2,776.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.18 : 2,977.43 = 2,011.26 : x
  2. Step 2: Convert to fraction form
    2,157.18/2,977.43 = 2,011.26/x
  3. Step 3: Cross multiply
    2,157.18x = 2,977.43 × 2,011.26
  4. Step 4: Simplify right side
    2,157.18x = 5,988,385.86
  5. Step 5: Solve for x
    x = 5,988,385.86/2,157.18
  6. Step 6: Final answer
    x = 2,776.03

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1.5x scale

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.