Home / 7,106.50-9,807.36-3,962.68

Finding the Fourth Proportional to 7,106.50, 9,807.36 and 3,962.68

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Solution

The fourth proportional to 7,106.50, 9,807.36 and 3,962.68 is: 5,468.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.50 : 9,807.36 = 3,962.68 : x
  2. Step 2: Convert to fraction form
    7,106.50/9,807.36 = 3,962.68/x
  3. Step 3: Cross multiply
    7,106.50x = 9,807.36 × 3,962.68
  4. Step 4: Simplify right side
    7,106.50x = 38,863,429.32
  5. Step 5: Solve for x
    x = 38,863,429.32/7,106.50
  6. Step 6: Final answer
    x = 5,468.72

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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.