Home / 5,011.18-7,515.61-1,891.51

Finding the Fourth Proportional to 5,011.18, 7,515.61 and 1,891.51

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Solution

The fourth proportional to 5,011.18, 7,515.61 and 1,891.51 is: 2,836.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.18 : 7,515.61 = 1,891.51 : x
  2. Step 2: Convert to fraction form
    5,011.18/7,515.61 = 1,891.51/x
  3. Step 3: Cross multiply
    5,011.18x = 7,515.61 × 1,891.51
  4. Step 4: Simplify right side
    5,011.18x = 14,215,827.95
  5. Step 5: Solve for x
    x = 14,215,827.95/5,011.18
  6. Step 6: Final answer
    x = 2,836.82

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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.