Home / 7,106.16-9,805.81-4,122.19

Finding the Fourth Proportional to 7,106.16, 9,805.81 and 4,122.19

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Solution

The fourth proportional to 7,106.16, 9,805.81 and 4,122.19 is: 5,688.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.16 : 9,805.81 = 4,122.19 : x
  2. Step 2: Convert to fraction form
    7,106.16/9,805.81 = 4,122.19/x
  3. Step 3: Cross multiply
    7,106.16x = 9,805.81 × 4,122.19
  4. Step 4: Simplify right side
    7,106.16x = 40,421,411.92
  5. Step 5: Solve for x
    x = 40,421,411.92/7,106.16
  6. Step 6: Final answer
    x = 5,688.22

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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.