Home / 5,191.48-7,785.36-1,903.84

Finding the Fourth Proportional to 5,191.48, 7,785.36 and 1,903.84

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Solution

The fourth proportional to 5,191.48, 7,785.36 and 1,903.84 is: 2,855.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.48 : 7,785.36 = 1,903.84 : x
  2. Step 2: Convert to fraction form
    5,191.48/7,785.36 = 1,903.84/x
  3. Step 3: Cross multiply
    5,191.48x = 7,785.36 × 1,903.84
  4. Step 4: Simplify right side
    5,191.48x = 14,822,079.78
  5. Step 5: Solve for x
    x = 14,822,079.78/5,191.48
  6. Step 6: Final answer
    x = 2,855.08

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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.