Home / 1,713.04-2,567.32-687.76

Finding the Fourth Proportional to 1,713.04, 2,567.32 and 687.76

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Solution

The fourth proportional to 1,713.04, 2,567.32 and 687.76 is: 1,030.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.04 : 2,567.32 = 687.76 : x
  2. Step 2: Convert to fraction form
    1,713.04/2,567.32 = 687.76/x
  3. Step 3: Cross multiply
    1,713.04x = 2,567.32 × 687.76
  4. Step 4: Simplify right side
    1,713.04x = 1,765,700.00
  5. Step 5: Solve for x
    x = 1,765,700.00/1,713.04
  6. Step 6: Final answer
    x = 1,030.74

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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.