Home / 7,856.67-10,842.25-4,319.91

Finding the Fourth Proportional to 7,856.67, 10,842.25 and 4,319.91

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Solution

The fourth proportional to 7,856.67, 10,842.25 and 4,319.91 is: 5,961.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.67 : 10,842.25 = 4,319.91 : x
  2. Step 2: Convert to fraction form
    7,856.67/10,842.25 = 4,319.91/x
  3. Step 3: Cross multiply
    7,856.67x = 10,842.25 × 4,319.91
  4. Step 4: Simplify right side
    7,856.67x = 46,837,544.20
  5. Step 5: Solve for x
    x = 46,837,544.20/7,856.67
  6. Step 6: Final answer
    x = 5,961.50

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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.