Home / 5,319.83-7,980.56-1,856.27

Finding the Fourth Proportional to 5,319.83, 7,980.56 and 1,856.27

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Solution

The fourth proportional to 5,319.83, 7,980.56 and 1,856.27 is: 2,784.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.83 : 7,980.56 = 1,856.27 : x
  2. Step 2: Convert to fraction form
    5,319.83/7,980.56 = 1,856.27/x
  3. Step 3: Cross multiply
    5,319.83x = 7,980.56 × 1,856.27
  4. Step 4: Simplify right side
    5,319.83x = 14,814,074.11
  5. Step 5: Solve for x
    x = 14,814,074.11/5,319.83
  6. Step 6: Final answer
    x = 2,784.69

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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.