Home / 1,777.12-2,667.09-1,315.01

Finding the Fourth Proportional to 1,777.12, 2,667.09 and 1,315.01

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Solution

The fourth proportional to 1,777.12, 2,667.09 and 1,315.01 is: 1,973.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.12 : 2,667.09 = 1,315.01 : x
  2. Step 2: Convert to fraction form
    1,777.12/2,667.09 = 1,315.01/x
  3. Step 3: Cross multiply
    1,777.12x = 2,667.09 × 1,315.01
  4. Step 4: Simplify right side
    1,777.12x = 3,507,250.02
  5. Step 5: Solve for x
    x = 3,507,250.02/1,777.12
  6. Step 6: Final answer
    x = 1,973.56

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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.