Home / 2,087.64-2,879.01-1,423.17

Finding the Fourth Proportional to 2,087.64, 2,879.01 and 1,423.17

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Solution

The fourth proportional to 2,087.64, 2,879.01 and 1,423.17 is: 1,962.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.64 : 2,879.01 = 1,423.17 : x
  2. Step 2: Convert to fraction form
    2,087.64/2,879.01 = 1,423.17/x
  3. Step 3: Cross multiply
    2,087.64x = 2,879.01 × 1,423.17
  4. Step 4: Simplify right side
    2,087.64x = 4,097,320.66
  5. Step 5: Solve for x
    x = 4,097,320.66/2,087.64
  6. Step 6: Final answer
    x = 1,962.66

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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.