Home / 5,511.80-8,266.74-1,615.32

Finding the Fourth Proportional to 5,511.80, 8,266.74 and 1,615.32

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Solution

The fourth proportional to 5,511.80, 8,266.74 and 1,615.32 is: 2,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511.80 : 8,266.74 = 1,615.32 : x
  2. Step 2: Convert to fraction form
    5,511.80/8,266.74 = 1,615.32/x
  3. Step 3: Cross multiply
    5,511.80x = 8,266.74 × 1,615.32
  4. Step 4: Simplify right side
    5,511.80x = 13,353,430.46
  5. Step 5: Solve for x
    x = 13,353,430.46/5,511.80
  6. Step 6: Final answer
    x = 2,422.70

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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.