Home / 1,710.12-2,568.08-1,118.12

Finding the Fourth Proportional to 1,710.12, 2,568.08 and 1,118.12

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Solution

The fourth proportional to 1,710.12, 2,568.08 and 1,118.12 is: 1,679.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,710.12 : 2,568.08 = 1,118.12 : x
  2. Step 2: Convert to fraction form
    1,710.12/2,568.08 = 1,118.12/x
  3. Step 3: Cross multiply
    1,710.12x = 2,568.08 × 1,118.12
  4. Step 4: Simplify right side
    1,710.12x = 2,871,421.61
  5. Step 5: Solve for x
    x = 2,871,421.61/1,710.12
  6. Step 6: Final answer
    x = 1,679.08

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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.