Home / 1,347.88-2,011.25-1,265.32

Finding the Fourth Proportional to 1,347.88, 2,011.25 and 1,265.32

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Solution

The fourth proportional to 1,347.88, 2,011.25 and 1,265.32 is: 1,888.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.88 : 2,011.25 = 1,265.32 : x
  2. Step 2: Convert to fraction form
    1,347.88/2,011.25 = 1,265.32/x
  3. Step 3: Cross multiply
    1,347.88x = 2,011.25 × 1,265.32
  4. Step 4: Simplify right side
    1,347.88x = 2,544,874.85
  5. Step 5: Solve for x
    x = 2,544,874.85/1,347.88
  6. Step 6: Final answer
    x = 1,888.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.