Home / 6,398.16-8,830.58-4,791.12

Finding the Fourth Proportional to 6,398.16, 8,830.58 and 4,791.12

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Solution

The fourth proportional to 6,398.16, 8,830.58 and 4,791.12 is: 6,612.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398.16 : 8,830.58 = 4,791.12 : x
  2. Step 2: Convert to fraction form
    6,398.16/8,830.58 = 4,791.12/x
  3. Step 3: Cross multiply
    6,398.16x = 8,830.58 × 4,791.12
  4. Step 4: Simplify right side
    6,398.16x = 42,308,368.45
  5. Step 5: Solve for x
    x = 42,308,368.45/6,398.16
  6. Step 6: Final answer
    x = 6,612.58

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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.