Home / 7,784.02-10,742.19-4,427.32

Finding the Fourth Proportional to 7,784.02, 10,742.19 and 4,427.32

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Solution

The fourth proportional to 7,784.02, 10,742.19 and 4,427.32 is: 6,109.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,784.02 : 10,742.19 = 4,427.32 : x
  2. Step 2: Convert to fraction form
    7,784.02/10,742.19 = 4,427.32/x
  3. Step 3: Cross multiply
    7,784.02x = 10,742.19 × 4,427.32
  4. Step 4: Simplify right side
    7,784.02x = 47,559,074.21
  5. Step 5: Solve for x
    x = 47,559,074.21/7,784.02
  6. Step 6: Final answer
    x = 6,109.83

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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.