Home / 6,317.51-8,721.13-3,664.40

Finding the Fourth Proportional to 6,317.51, 8,721.13 and 3,664.40

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Solution

The fourth proportional to 6,317.51, 8,721.13 and 3,664.40 is: 5,058.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,317.51 : 8,721.13 = 3,664.40 : x
  2. Step 2: Convert to fraction form
    6,317.51/8,721.13 = 3,664.40/x
  3. Step 3: Cross multiply
    6,317.51x = 8,721.13 × 3,664.40
  4. Step 4: Simplify right side
    6,317.51x = 31,957,708.77
  5. Step 5: Solve for x
    x = 31,957,708.77/6,317.51
  6. Step 6: Final answer
    x = 5,058.59

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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.