Home / 1,259.99-1,737.82-1,118.35

Finding the Fourth Proportional to 1,259.99, 1,737.82 and 1,118.35

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Solution

The fourth proportional to 1,259.99, 1,737.82 and 1,118.35 is: 1,542.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259.99 : 1,737.82 = 1,118.35 : x
  2. Step 2: Convert to fraction form
    1,259.99/1,737.82 = 1,118.35/x
  3. Step 3: Cross multiply
    1,259.99x = 1,737.82 × 1,118.35
  4. Step 4: Simplify right side
    1,259.99x = 1,943,494.57
  5. Step 5: Solve for x
    x = 1,943,494.57/1,259.99
  6. Step 6: Final answer
    x = 1,542.47

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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.