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Finding the Fourth Proportional to 3,040.40, 4,117.50 and 3,040.40

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Solution

The fourth proportional to 3,040.40, 4,117.50 and 3,040.40 is: 4,117.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.40 : 4,117.50 = 3,040.40 : x
  2. Step 2: Convert to fraction form
    3,040.40/4,117.50 = 3,040.40/x
  3. Step 3: Cross multiply
    3,040.40x = 4,117.50 × 3,040.40
  4. Step 4: Simplify right side
    3,040.40x = 12,518,847
  5. Step 5: Solve for x
    x = 12,518,847/3,040.40
  6. Step 6: Final answer
    x = 4,117.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.