Home / 6,319.02-8,719.87-3,486.40

Finding the Fourth Proportional to 6,319.02, 8,719.87 and 3,486.40

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Solution

The fourth proportional to 6,319.02, 8,719.87 and 3,486.40 is: 4,811.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.02 : 8,719.87 = 3,486.40 : x
  2. Step 2: Convert to fraction form
    6,319.02/8,719.87 = 3,486.40/x
  3. Step 3: Cross multiply
    6,319.02x = 8,719.87 × 3,486.40
  4. Step 4: Simplify right side
    6,319.02x = 30,400,954.77
  5. Step 5: Solve for x
    x = 30,400,954.77/6,319.02
  6. Step 6: Final answer
    x = 4,811.02

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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.