Home / 6,290.08-8,680.10-3,457.40

Finding the Fourth Proportional to 6,290.08, 8,680.10 and 3,457.40

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Solution

The fourth proportional to 6,290.08, 8,680.10 and 3,457.40 is: 4,771.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.08 : 8,680.10 = 3,457.40 : x
  2. Step 2: Convert to fraction form
    6,290.08/8,680.10 = 3,457.40/x
  3. Step 3: Cross multiply
    6,290.08x = 8,680.10 × 3,457.40
  4. Step 4: Simplify right side
    6,290.08x = 30,010,577.74
  5. Step 5: Solve for x
    x = 30,010,577.74/6,290.08
  6. Step 6: Final answer
    x = 4,771.10

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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.