Home / 7,106.16-9,805.80-4,122.18

Finding the Fourth Proportional to 7,106.16, 9,805.80 and 4,122.18

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Solution

The fourth proportional to 7,106.16, 9,805.80 and 4,122.18 is: 5,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.16 : 9,805.80 = 4,122.18 : x
  2. Step 2: Convert to fraction form
    7,106.16/9,805.80 = 4,122.18/x
  3. Step 3: Cross multiply
    7,106.16x = 9,805.80 × 4,122.18
  4. Step 4: Simplify right side
    7,106.16x = 40,421,272.64
  5. Step 5: Solve for x
    x = 40,421,272.64/7,106.16
  6. Step 6: Final answer
    x = 5,688.20

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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.