Home / 4,810-7,215.68-1,886.72

Finding the Fourth Proportional to 4,810, 7,215.68 and 1,886.72

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Solution

The fourth proportional to 4,810, 7,215.68 and 1,886.72 is: 2,830.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810 : 7,215.68 = 1,886.72 : x
  2. Step 2: Convert to fraction form
    4,810/7,215.68 = 1,886.72/x
  3. Step 3: Cross multiply
    4,810x = 7,215.68 × 1,886.72
  4. Step 4: Simplify right side
    4,810x = 13,613,967.77
  5. Step 5: Solve for x
    x = 13,613,967.77/4,810
  6. Step 6: Final answer
    x = 2,830.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.