Home / 5,625.18-7,762.80-3,107.40

Finding the Fourth Proportional to 5,625.18, 7,762.80 and 3,107.40

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Solution

The fourth proportional to 5,625.18, 7,762.80 and 3,107.40 is: 4,288.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,625.18 : 7,762.80 = 3,107.40 : x
  2. Step 2: Convert to fraction form
    5,625.18/7,762.80 = 3,107.40/x
  3. Step 3: Cross multiply
    5,625.18x = 7,762.80 × 3,107.40
  4. Step 4: Simplify right side
    5,625.18x = 24,122,124.72
  5. Step 5: Solve for x
    x = 24,122,124.72/5,625.18
  6. Step 6: Final answer
    x = 4,288.24

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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.