Home / 1,681.04-2,521.20-706.88

Finding the Fourth Proportional to 1,681.04, 2,521.20 and 706.88

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Solution

The fourth proportional to 1,681.04, 2,521.20 and 706.88 is: 1,060.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.04 : 2,521.20 = 706.88 : x
  2. Step 2: Convert to fraction form
    1,681.04/2,521.20 = 706.88/x
  3. Step 3: Cross multiply
    1,681.04x = 2,521.20 × 706.88
  4. Step 4: Simplify right side
    1,681.04x = 1,782,185.86
  5. Step 5: Solve for x
    x = 1,782,185.86/1,681.04
  6. Step 6: Final answer
    x = 1,060.17

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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.