Home / 1,859.51-2,566.08-1,020.21

Finding the Fourth Proportional to 1,859.51, 2,566.08 and 1,020.21

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Solution

The fourth proportional to 1,859.51, 2,566.08 and 1,020.21 is: 1,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.51 : 2,566.08 = 1,020.21 : x
  2. Step 2: Convert to fraction form
    1,859.51/2,566.08 = 1,020.21/x
  3. Step 3: Cross multiply
    1,859.51x = 2,566.08 × 1,020.21
  4. Step 4: Simplify right side
    1,859.51x = 2,617,940.48
  5. Step 5: Solve for x
    x = 2,617,940.48/1,859.51
  6. Step 6: Final answer
    x = 1,407.87

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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.