Home / 1,858.88-2,560.85-1,298.36

Finding the Fourth Proportional to 1,858.88, 2,560.85 and 1,298.36

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Solution

The fourth proportional to 1,858.88, 2,560.85 and 1,298.36 is: 1,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858.88 : 2,560.85 = 1,298.36 : x
  2. Step 2: Convert to fraction form
    1,858.88/2,560.85 = 1,298.36/x
  3. Step 3: Cross multiply
    1,858.88x = 2,560.85 × 1,298.36
  4. Step 4: Simplify right side
    1,858.88x = 3,324,909.99
  5. Step 5: Solve for x
    x = 3,324,909.99/1,858.88
  6. Step 6: Final answer
    x = 1,788.66

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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.