Home / 1,858.88-2,564.80-1,113.08

Finding the Fourth Proportional to 1,858.88, 2,564.80 and 1,113.08

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Solution

The fourth proportional to 1,858.88, 2,564.80 and 1,113.08 is: 1,535.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858.88 : 2,564.80 = 1,113.08 : x
  2. Step 2: Convert to fraction form
    1,858.88/2,564.80 = 1,113.08/x
  3. Step 3: Cross multiply
    1,858.88x = 2,564.80 × 1,113.08
  4. Step 4: Simplify right side
    1,858.88x = 2,854,827.58
  5. Step 5: Solve for x
    x = 2,854,827.58/1,858.88
  6. Step 6: Final answer
    x = 1,535.78

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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.