Home / 1,859.78-2,566.35-1,020.47

Finding the Fourth Proportional to 1,859.78, 2,566.35 and 1,020.47

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Solution

The fourth proportional to 1,859.78, 2,566.35 and 1,020.47 is: 1,408.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.78 : 2,566.35 = 1,020.47 : x
  2. Step 2: Convert to fraction form
    1,859.78/2,566.35 = 1,020.47/x
  3. Step 3: Cross multiply
    1,859.78x = 2,566.35 × 1,020.47
  4. Step 4: Simplify right side
    1,859.78x = 2,618,870.35
  5. Step 5: Solve for x
    x = 2,618,870.35/1,859.78
  6. Step 6: Final answer
    x = 1,408.16

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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.