Home / 7,261.12-10,019.76-4,117.60

Finding the Fourth Proportional to 7,261.12, 10,019.76 and 4,117.60

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Solution

The fourth proportional to 7,261.12, 10,019.76 and 4,117.60 is: 5,681.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261.12 : 10,019.76 = 4,117.60 : x
  2. Step 2: Convert to fraction form
    7,261.12/10,019.76 = 4,117.60/x
  3. Step 3: Cross multiply
    7,261.12x = 10,019.76 × 4,117.60
  4. Step 4: Simplify right side
    7,261.12x = 41,257,363.78
  5. Step 5: Solve for x
    x = 41,257,363.78/7,261.12
  6. Step 6: Final answer
    x = 5,681.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.