Home / 2,285.64-3,151.98-2,039.40

Finding the Fourth Proportional to 2,285.64, 3,151.98 and 2,039.40

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Solution

The fourth proportional to 2,285.64, 3,151.98 and 2,039.40 is: 2,812.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.64 : 3,151.98 = 2,039.40 : x
  2. Step 2: Convert to fraction form
    2,285.64/3,151.98 = 2,039.40/x
  3. Step 3: Cross multiply
    2,285.64x = 3,151.98 × 2,039.40
  4. Step 4: Simplify right side
    2,285.64x = 6,428,148.01
  5. Step 5: Solve for x
    x = 6,428,148.01/2,285.64
  6. Step 6: Final answer
    x = 2,812.41

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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.