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Finding the Fourth Proportional to 6,429.51, 8,877.75 and 4,935.06

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Solution

The fourth proportional to 6,429.51, 8,877.75 and 4,935.06 is: 6,814.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.51 : 8,877.75 = 4,935.06 : x
  2. Step 2: Convert to fraction form
    6,429.51/8,877.75 = 4,935.06/x
  3. Step 3: Cross multiply
    6,429.51x = 8,877.75 × 4,935.06
  4. Step 4: Simplify right side
    6,429.51x = 43,812,184.53
  5. Step 5: Solve for x
    x = 43,812,184.53/6,429.51
  6. Step 6: Final answer
    x = 6,814.24

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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.