Home / 4,931-7,392.36-2,011.40

Finding the Fourth Proportional to 4,931, 7,392.36 and 2,011.40

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Solution

The fourth proportional to 4,931, 7,392.36 and 2,011.40 is: 3,015.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931 : 7,392.36 = 2,011.40 : x
  2. Step 2: Convert to fraction form
    4,931/7,392.36 = 2,011.40/x
  3. Step 3: Cross multiply
    4,931x = 7,392.36 × 2,011.40
  4. Step 4: Simplify right side
    4,931x = 14,868,992.90
  5. Step 5: Solve for x
    x = 14,868,992.90/4,931
  6. Step 6: Final answer
    x = 3,015.41

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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.