Home / 5,127.60-7,689.04-1,839.84

Finding the Fourth Proportional to 5,127.60, 7,689.04 and 1,839.84

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Solution

The fourth proportional to 5,127.60, 7,689.04 and 1,839.84 is: 2,758.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.60 : 7,689.04 = 1,839.84 : x
  2. Step 2: Convert to fraction form
    5,127.60/7,689.04 = 1,839.84/x
  3. Step 3: Cross multiply
    5,127.60x = 7,689.04 × 1,839.84
  4. Step 4: Simplify right side
    5,127.60x = 14,146,603.35
  5. Step 5: Solve for x
    x = 14,146,603.35/5,127.60
  6. Step 6: Final answer
    x = 2,758.91

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1.5x scale

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.