Home / 1,566.05-2,145.09-1,561.73

Finding the Fourth Proportional to 1,566.05, 2,145.09 and 1,561.73

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Solution

The fourth proportional to 1,566.05, 2,145.09 and 1,561.73 is: 2,139.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566.05 : 2,145.09 = 1,561.73 : x
  2. Step 2: Convert to fraction form
    1,566.05/2,145.09 = 1,561.73/x
  3. Step 3: Cross multiply
    1,566.05x = 2,145.09 × 1,561.73
  4. Step 4: Simplify right side
    1,566.05x = 3,350,051.41
  5. Step 5: Solve for x
    x = 3,350,051.41/1,566.05
  6. Step 6: Final answer
    x = 2,139.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.