Home / 1,646.24-2,272.67-1,087.62

Finding the Fourth Proportional to 1,646.24, 2,272.67 and 1,087.62

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Solution

The fourth proportional to 1,646.24, 2,272.67 and 1,087.62 is: 1,501.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.24 : 2,272.67 = 1,087.62 : x
  2. Step 2: Convert to fraction form
    1,646.24/2,272.67 = 1,087.62/x
  3. Step 3: Cross multiply
    1,646.24x = 2,272.67 × 1,087.62
  4. Step 4: Simplify right side
    1,646.24x = 2,471,795.91
  5. Step 5: Solve for x
    x = 2,471,795.91/1,646.24
  6. Step 6: Final answer
    x = 1,501.48

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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.