Home / 5,155.74-7,733.91-1,869.18

Finding the Fourth Proportional to 5,155.74, 7,733.91 and 1,869.18

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Solution

The fourth proportional to 5,155.74, 7,733.91 and 1,869.18 is: 2,803.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.74 : 7,733.91 = 1,869.18 : x
  2. Step 2: Convert to fraction form
    5,155.74/7,733.91 = 1,869.18/x
  3. Step 3: Cross multiply
    5,155.74x = 7,733.91 × 1,869.18
  4. Step 4: Simplify right side
    5,155.74x = 14,456,069.89
  5. Step 5: Solve for x
    x = 14,456,069.89/5,155.74
  6. Step 6: Final answer
    x = 2,803.88

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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.