Home / 5,561.40-8,342.10-2,645.40

Finding the Fourth Proportional to 5,561.40, 8,342.10 and 2,645.40

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Solution

The fourth proportional to 5,561.40, 8,342.10 and 2,645.40 is: 3,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,561.40 : 8,342.10 = 2,645.40 : x
  2. Step 2: Convert to fraction form
    5,561.40/8,342.10 = 2,645.40/x
  3. Step 3: Cross multiply
    5,561.40x = 8,342.10 × 2,645.40
  4. Step 4: Simplify right side
    5,561.40x = 22,068,191.34
  5. Step 5: Solve for x
    x = 22,068,191.34/5,561.40
  6. Step 6: Final answer
    x = 3,968.10

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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.