Home / 5,240.84-7,860.04-1,542.07

Finding the Fourth Proportional to 5,240.84, 7,860.04 and 1,542.07

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Solution

The fourth proportional to 5,240.84, 7,860.04 and 1,542.07 is: 2,312.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.84 : 7,860.04 = 1,542.07 : x
  2. Step 2: Convert to fraction form
    5,240.84/7,860.04 = 1,542.07/x
  3. Step 3: Cross multiply
    5,240.84x = 7,860.04 × 1,542.07
  4. Step 4: Simplify right side
    5,240.84x = 12,120,737.85
  5. Step 5: Solve for x
    x = 12,120,737.85/5,240.84
  6. Step 6: Final answer
    x = 2,312.75

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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.