Home / 1,863.47-2,795.21-630.87

Finding the Fourth Proportional to 1,863.47, 2,795.21 and 630.87

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Solution

The fourth proportional to 1,863.47, 2,795.21 and 630.87 is: 946.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.47 : 2,795.21 = 630.87 : x
  2. Step 2: Convert to fraction form
    1,863.47/2,795.21 = 630.87/x
  3. Step 3: Cross multiply
    1,863.47x = 2,795.21 × 630.87
  4. Step 4: Simplify right side
    1,863.47x = 1,763,410.98
  5. Step 5: Solve for x
    x = 1,763,410.98/1,863.47
  6. Step 6: Final answer
    x = 946.31

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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.