Home / 7,820.36-10,790.71-4,462.64

Finding the Fourth Proportional to 7,820.36, 10,790.71 and 4,462.64

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Solution

The fourth proportional to 7,820.36, 10,790.71 and 4,462.64 is: 6,157.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.36 : 10,790.71 = 4,462.64 : x
  2. Step 2: Convert to fraction form
    7,820.36/10,790.71 = 4,462.64/x
  3. Step 3: Cross multiply
    7,820.36x = 10,790.71 × 4,462.64
  4. Step 4: Simplify right side
    7,820.36x = 48,154,988.96
  5. Step 5: Solve for x
    x = 48,154,988.96/7,820.36
  6. Step 6: Final answer
    x = 6,157.65

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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.