Home / 4,705.68-7,055.82-1,782.12

Finding the Fourth Proportional to 4,705.68, 7,055.82 and 1,782.12

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Solution

The fourth proportional to 4,705.68, 7,055.82 and 1,782.12 is: 2,672.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,705.68 : 7,055.82 = 1,782.12 : x
  2. Step 2: Convert to fraction form
    4,705.68/7,055.82 = 1,782.12/x
  3. Step 3: Cross multiply
    4,705.68x = 7,055.82 × 1,782.12
  4. Step 4: Simplify right side
    4,705.68x = 12,574,317.94
  5. Step 5: Solve for x
    x = 12,574,317.94/4,705.68
  6. Step 6: Final answer
    x = 2,672.16

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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.