Home / 4,320.60-6,477.85-1,686.07

Finding the Fourth Proportional to 4,320.60, 6,477.85 and 1,686.07

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Solution

The fourth proportional to 4,320.60, 6,477.85 and 1,686.07 is: 2,527.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.60 : 6,477.85 = 1,686.07 : x
  2. Step 2: Convert to fraction form
    4,320.60/6,477.85 = 1,686.07/x
  3. Step 3: Cross multiply
    4,320.60x = 6,477.85 × 1,686.07
  4. Step 4: Simplify right side
    4,320.60x = 10,922,108.55
  5. Step 5: Solve for x
    x = 10,922,108.55/4,320.60
  6. Step 6: Final answer
    x = 2,527.91

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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.