Home / 4,719.59-7,081.32-2,085.70

Finding the Fourth Proportional to 4,719.59, 7,081.32 and 2,085.70

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Solution

The fourth proportional to 4,719.59, 7,081.32 and 2,085.70 is: 3,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.59 : 7,081.32 = 2,085.70 : x
  2. Step 2: Convert to fraction form
    4,719.59/7,081.32 = 2,085.70/x
  3. Step 3: Cross multiply
    4,719.59x = 7,081.32 × 2,085.70
  4. Step 4: Simplify right side
    4,719.59x = 14,769,463.29
  5. Step 5: Solve for x
    x = 14,769,463.29/4,719.59
  6. Step 6: Final answer
    x = 3,129.40

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1.5x scale

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.