Home / 5,354.70-8,030.61-1,891.50

Finding the Fourth Proportional to 5,354.70, 8,030.61 and 1,891.50

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Solution

The fourth proportional to 5,354.70, 8,030.61 and 1,891.50 is: 2,836.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,354.70 : 8,030.61 = 1,891.50 : x
  2. Step 2: Convert to fraction form
    5,354.70/8,030.61 = 1,891.50/x
  3. Step 3: Cross multiply
    5,354.70x = 8,030.61 × 1,891.50
  4. Step 4: Simplify right side
    5,354.70x = 15,189,898.82
  5. Step 5: Solve for x
    x = 15,189,898.82/5,354.70
  6. Step 6: Final answer
    x = 2,836.74

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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.