Home / 6,430.51-8,872.23-4,072.06

Finding the Fourth Proportional to 6,430.51, 8,872.23 and 4,072.06

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Solution

The fourth proportional to 6,430.51, 8,872.23 and 4,072.06 is: 5,618.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.51 : 8,872.23 = 4,072.06 : x
  2. Step 2: Convert to fraction form
    6,430.51/8,872.23 = 4,072.06/x
  3. Step 3: Cross multiply
    6,430.51x = 8,872.23 × 4,072.06
  4. Step 4: Simplify right side
    6,430.51x = 36,128,252.89
  5. Step 5: Solve for x
    x = 36,128,252.89/6,430.51
  6. Step 6: Final answer
    x = 5,618.26

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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.