Home / 4,700.15-6,485.76-2,811.35

Finding the Fourth Proportional to 4,700.15, 6,485.76 and 2,811.35

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Solution

The fourth proportional to 4,700.15, 6,485.76 and 2,811.35 is: 3,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,700.15 : 6,485.76 = 2,811.35 : x
  2. Step 2: Convert to fraction form
    4,700.15/6,485.76 = 2,811.35/x
  3. Step 3: Cross multiply
    4,700.15x = 6,485.76 × 2,811.35
  4. Step 4: Simplify right side
    4,700.15x = 18,233,727.32
  5. Step 5: Solve for x
    x = 18,233,727.32/4,700.15
  6. Step 6: Final answer
    x = 3,879.39

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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.