Home / 2,357.80-3,537.38-1,125.25

Finding the Fourth Proportional to 2,357.80, 3,537.38 and 1,125.25

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Solution

The fourth proportional to 2,357.80, 3,537.38 and 1,125.25 is: 1,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,357.80 : 3,537.38 = 1,125.25 : x
  2. Step 2: Convert to fraction form
    2,357.80/3,537.38 = 1,125.25/x
  3. Step 3: Cross multiply
    2,357.80x = 3,537.38 × 1,125.25
  4. Step 4: Simplify right side
    2,357.80x = 3,980,430.81
  5. Step 5: Solve for x
    x = 3,980,430.81/2,357.80
  6. Step 6: Final answer
    x = 1,688.20

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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.