Home / 4,709.40-7,055.91-2,856.12

Finding the Fourth Proportional to 4,709.40, 7,055.91 and 2,856.12

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Solution

The fourth proportional to 4,709.40, 7,055.91 and 2,856.12 is: 4,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,709.40 : 7,055.91 = 2,856.12 : x
  2. Step 2: Convert to fraction form
    4,709.40/7,055.91 = 2,856.12/x
  3. Step 3: Cross multiply
    4,709.40x = 7,055.91 × 2,856.12
  4. Step 4: Simplify right side
    4,709.40x = 20,152,525.67
  5. Step 5: Solve for x
    x = 20,152,525.67/4,709.40
  6. Step 6: Final answer
    x = 4,279.21

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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.