Home / 4,315.85-6,470.73-1,681.32

Finding the Fourth Proportional to 4,315.85, 6,470.73 and 1,681.32

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Solution

The fourth proportional to 4,315.85, 6,470.73 and 1,681.32 is: 2,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,315.85 : 6,470.73 = 1,681.32 : x
  2. Step 2: Convert to fraction form
    4,315.85/6,470.73 = 1,681.32/x
  3. Step 3: Cross multiply
    4,315.85x = 6,470.73 × 1,681.32
  4. Step 4: Simplify right side
    4,315.85x = 10,879,367.76
  5. Step 5: Solve for x
    x = 10,879,367.76/4,315.85
  6. Step 6: Final answer
    x = 2,520.80

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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.