Home / 7,922.10-10,932-4,648.80

Finding the Fourth Proportional to 7,922.10, 10,932 and 4,648.80

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Solution

The fourth proportional to 7,922.10, 10,932 and 4,648.80 is: 6,415.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.10 : 10,932 = 4,648.80 : x
  2. Step 2: Convert to fraction form
    7,922.10/10,932 = 4,648.80/x
  3. Step 3: Cross multiply
    7,922.10x = 10,932 × 4,648.80
  4. Step 4: Simplify right side
    7,922.10x = 50,820,681.60
  5. Step 5: Solve for x
    x = 50,820,681.60/7,922.10
  6. Step 6: Final answer
    x = 6,415.05

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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.