Home / 2,655.72-3,983.58-707.93

Finding the Fourth Proportional to 2,655.72, 3,983.58 and 707.93

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Solution

The fourth proportional to 2,655.72, 3,983.58 and 707.93 is: 1,061.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.72 : 3,983.58 = 707.93 : x
  2. Step 2: Convert to fraction form
    2,655.72/3,983.58 = 707.93/x
  3. Step 3: Cross multiply
    2,655.72x = 3,983.58 × 707.93
  4. Step 4: Simplify right side
    2,655.72x = 2,820,095.79
  5. Step 5: Solve for x
    x = 2,820,095.79/2,655.72
  6. Step 6: Final answer
    x = 1,061.90

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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.