Home / 7,819.16-10,784.90-4,836.40

Finding the Fourth Proportional to 7,819.16, 10,784.90 and 4,836.40

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Solution

The fourth proportional to 7,819.16, 10,784.90 and 4,836.40 is: 6,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.16 : 10,784.90 = 4,836.40 : x
  2. Step 2: Convert to fraction form
    7,819.16/10,784.90 = 4,836.40/x
  3. Step 3: Cross multiply
    7,819.16x = 10,784.90 × 4,836.40
  4. Step 4: Simplify right side
    7,819.16x = 52,160,090.36
  5. Step 5: Solve for x
    x = 52,160,090.36/7,819.16
  6. Step 6: Final answer
    x = 6,670.80

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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.