Home / 3,191.24-4,782.72-1,545.50

Finding the Fourth Proportional to 3,191.24, 4,782.72 and 1,545.50

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Solution

The fourth proportional to 3,191.24, 4,782.72 and 1,545.50 is: 2,316.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.24 : 4,782.72 = 1,545.50 : x
  2. Step 2: Convert to fraction form
    3,191.24/4,782.72 = 1,545.50/x
  3. Step 3: Cross multiply
    3,191.24x = 4,782.72 × 1,545.50
  4. Step 4: Simplify right side
    3,191.24x = 7,391,693.76
  5. Step 5: Solve for x
    x = 7,391,693.76/3,191.24
  6. Step 6: Final answer
    x = 2,316.25

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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.