Home / 7,153.60-10,731.48-2,774.20

Finding the Fourth Proportional to 7,153.60, 10,731.48 and 2,774.20

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Solution

The fourth proportional to 7,153.60, 10,731.48 and 2,774.20 is: 4,161.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.60 : 10,731.48 = 2,774.20 : x
  2. Step 2: Convert to fraction form
    7,153.60/10,731.48 = 2,774.20/x
  3. Step 3: Cross multiply
    7,153.60x = 10,731.48 × 2,774.20
  4. Step 4: Simplify right side
    7,153.60x = 29,771,271.82
  5. Step 5: Solve for x
    x = 29,771,271.82/7,153.60
  6. Step 6: Final answer
    x = 4,161.72

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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.