Home / 6,215.55-9,307.75-3,715.20

Finding the Fourth Proportional to 6,215.55, 9,307.75 and 3,715.20

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Solution

The fourth proportional to 6,215.55, 9,307.75 and 3,715.20 is: 5,563.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.55 : 9,307.75 = 3,715.20 : x
  2. Step 2: Convert to fraction form
    6,215.55/9,307.75 = 3,715.20/x
  3. Step 3: Cross multiply
    6,215.55x = 9,307.75 × 3,715.20
  4. Step 4: Simplify right side
    6,215.55x = 34,580,152.80
  5. Step 5: Solve for x
    x = 34,580,152.80/6,215.55
  6. Step 6: Final answer
    x = 5,563.49

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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.