Home / 4,677.20-7,017.14-1,390.36

Finding the Fourth Proportional to 4,677.20, 7,017.14 and 1,390.36

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Solution

The fourth proportional to 4,677.20, 7,017.14 and 1,390.36 is: 2,085.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,677.20 : 7,017.14 = 1,390.36 : x
  2. Step 2: Convert to fraction form
    4,677.20/7,017.14 = 1,390.36/x
  3. Step 3: Cross multiply
    4,677.20x = 7,017.14 × 1,390.36
  4. Step 4: Simplify right side
    4,677.20x = 9,756,350.77
  5. Step 5: Solve for x
    x = 9,756,350.77/4,677.20
  6. Step 6: Final answer
    x = 2,085.94

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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.