Home / 5,239.04-7,860.10-2,117.46

Finding the Fourth Proportional to 5,239.04, 7,860.10 and 2,117.46

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Solution

The fourth proportional to 5,239.04, 7,860.10 and 2,117.46 is: 3,176.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.04 : 7,860.10 = 2,117.46 : x
  2. Step 2: Convert to fraction form
    5,239.04/7,860.10 = 2,117.46/x
  3. Step 3: Cross multiply
    5,239.04x = 7,860.10 × 2,117.46
  4. Step 4: Simplify right side
    5,239.04x = 16,643,447.35
  5. Step 5: Solve for x
    x = 16,643,447.35/5,239.04
  6. Step 6: Final answer
    x = 3,176.81

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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.