Home / 6,138.16-8,470.40-3,485.71

Finding the Fourth Proportional to 6,138.16, 8,470.40 and 3,485.71

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Solution

The fourth proportional to 6,138.16, 8,470.40 and 3,485.71 is: 4,810.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138.16 : 8,470.40 = 3,485.71 : x
  2. Step 2: Convert to fraction form
    6,138.16/8,470.40 = 3,485.71/x
  3. Step 3: Cross multiply
    6,138.16x = 8,470.40 × 3,485.71
  4. Step 4: Simplify right side
    6,138.16x = 29,525,357.98
  5. Step 5: Solve for x
    x = 29,525,357.98/6,138.16
  6. Step 6: Final answer
    x = 4,810.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.