Home / 7,578.32-10,459.56-4,222.16

Finding the Fourth Proportional to 7,578.32, 10,459.56 and 4,222.16

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Solution

The fourth proportional to 7,578.32, 10,459.56 and 4,222.16 is: 5,827.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,578.32 : 10,459.56 = 4,222.16 : x
  2. Step 2: Convert to fraction form
    7,578.32/10,459.56 = 4,222.16/x
  3. Step 3: Cross multiply
    7,578.32x = 10,459.56 × 4,222.16
  4. Step 4: Simplify right side
    7,578.32x = 44,161,935.85
  5. Step 5: Solve for x
    x = 44,161,935.85/7,578.32
  6. Step 6: Final answer
    x = 5,827.40

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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.