Home / 9,140.31-13,705.34-2,899.16

Finding the Fourth Proportional to 9,140.31, 13,705.34 and 2,899.16

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Solution

The fourth proportional to 9,140.31, 13,705.34 and 2,899.16 is: 4,347.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.31 : 13,705.34 = 2,899.16 : x
  2. Step 2: Convert to fraction form
    9,140.31/13,705.34 = 2,899.16/x
  3. Step 3: Cross multiply
    9,140.31x = 13,705.34 × 2,899.16
  4. Step 4: Simplify right side
    9,140.31x = 39,733,941.89
  5. Step 5: Solve for x
    x = 39,733,941.89/9,140.31
  6. Step 6: Final answer
    x = 4,347.11

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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.