Home / 2,010.72-3,015.70-623.88

Finding the Fourth Proportional to 2,010.72, 3,015.70 and 623.88

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Solution

The fourth proportional to 2,010.72, 3,015.70 and 623.88 is: 935.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,010.72 : 3,015.70 = 623.88 : x
  2. Step 2: Convert to fraction form
    2,010.72/3,015.70 = 623.88/x
  3. Step 3: Cross multiply
    2,010.72x = 3,015.70 × 623.88
  4. Step 4: Simplify right side
    2,010.72x = 1,881,434.92
  5. Step 5: Solve for x
    x = 1,881,434.92/2,010.72
  6. Step 6: Final answer
    x = 935.70

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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.