Home / 5,285.10-7,281.69-3,489.39

Finding the Fourth Proportional to 5,285.10, 7,281.69 and 3,489.39

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Solution

The fourth proportional to 5,285.10, 7,281.69 and 3,489.39 is: 4,807.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.10 : 7,281.69 = 3,489.39 : x
  2. Step 2: Convert to fraction form
    5,285.10/7,281.69 = 3,489.39/x
  3. Step 3: Cross multiply
    5,285.10x = 7,281.69 × 3,489.39
  4. Step 4: Simplify right side
    5,285.10x = 25,408,656.27
  5. Step 5: Solve for x
    x = 25,408,656.27/5,285.10
  6. Step 6: Final answer
    x = 4,807.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.