Home / 5,921.12-8,880.96-1,538.18

Finding the Fourth Proportional to 5,921.12, 8,880.96 and 1,538.18

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Solution

The fourth proportional to 5,921.12, 8,880.96 and 1,538.18 is: 2,307.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.12 : 8,880.96 = 1,538.18 : x
  2. Step 2: Convert to fraction form
    5,921.12/8,880.96 = 1,538.18/x
  3. Step 3: Cross multiply
    5,921.12x = 8,880.96 × 1,538.18
  4. Step 4: Simplify right side
    5,921.12x = 13,660,515.05
  5. Step 5: Solve for x
    x = 13,660,515.05/5,921.12
  6. Step 6: Final answer
    x = 2,307.08

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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.