Home / 5,239.85-7,860.74-1,730.10

Finding the Fourth Proportional to 5,239.85, 7,860.74 and 1,730.10

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Solution

The fourth proportional to 5,239.85, 7,860.74 and 1,730.10 is: 2,595.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.85 : 7,860.74 = 1,730.10 : x
  2. Step 2: Convert to fraction form
    5,239.85/7,860.74 = 1,730.10/x
  3. Step 3: Cross multiply
    5,239.85x = 7,860.74 × 1,730.10
  4. Step 4: Simplify right side
    5,239.85x = 13,599,855.05
  5. Step 5: Solve for x
    x = 13,599,855.05/5,239.85
  6. Step 6: Final answer
    x = 2,595.46

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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.