Home / 2,359.40-3,537.80-1,127.12

Finding the Fourth Proportional to 2,359.40, 3,537.80 and 1,127.12

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Solution

The fourth proportional to 2,359.40, 3,537.80 and 1,127.12 is: 1,690.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,359.40 : 3,537.80 = 1,127.12 : x
  2. Step 2: Convert to fraction form
    2,359.40/3,537.80 = 1,127.12/x
  3. Step 3: Cross multiply
    2,359.40x = 3,537.80 × 1,127.12
  4. Step 4: Simplify right side
    2,359.40x = 3,987,525.14
  5. Step 5: Solve for x
    x = 3,987,525.14/2,359.40
  6. Step 6: Final answer
    x = 1,690.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.